【校级联考】浙江省“温州十校联合体”2018-2019学年高二上学期期末考试(含听力)英语试题

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浙江省“温州十校联合体”2018-2019学年高二上学期期末考试化学---精校Word版含答案

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试化学---精校Word版含答案

绝密★考试结束前2018学年第一学期温州“十校联合体”期末考试联考高二年级化学学科试题考生须知:1.本卷共6页满分100分,考试时间90分钟;2.答题前,在答题卷指定区域填写班级、姓名、考场号、座位号及准考证号并填涂相应数字。

3.所有答案必须写在答题纸上,写在试卷上无效;4.考试结束后,只需上交答题纸。

5. 相对原子质量:H-1 C-12 O-16 Na-23 Mg-24 Al-27 S-32 Cl-35.5 Fe-56 Sn-119选择题部分一、选择题(每小题只有一个答案符合题意,每小题2分,共50分)1.下列物质中,其主要成分不属于烃的是A.汽油B.甘油C.煤油D.柴油2.仪器名称为“容量瓶”的是A B.C.D.3.下列属于弱电解质的是A.CH3COONH4B.CH3COOH C. CH3CH2OH D.CH44.下列有机化合物中,其核磁共振氢谱图中不可能只出现一个峰的是A.C2H6B.C3H8C.C2H6O D.C6H125.下列物质的水溶液呈碱性的是A.CH3COOH B.CH3COONa C.CH3CH2OH D.NH4Cl6.某烃的一种同分异构体只能生成1种一氯代物,该烃的分子式可以是A.C3H8B.C4H10C.C5H12D.C6H147.有关化学用语正确的是A.溴乙烷的分子式:C2H5Br B.乙醇的结构简式:C2H6OC .四氯化碳的电子式:D .乙烯分子球棍模型:8.下列反应中,光照对反应几乎没有影响的是A .氯气与氢气反应B .次氯酸分解C .甲烷与氯气反应D .甲烷与氧气反应 9.某烃的结构简式为,它可能具有的性质是A .易溶于水,也易溶于有机溶剂B .分子里所有的原子都处在同一平面上C .该烃和苯互为同系物D .能发生加聚反应,其加聚产物可用表示10.下列有关乙烯化学性质的说法,不正确...的是 A .乙烯能使酸性高锰酸钾溶液褪色,是由于乙烯发生了氧化反应B .乙烯可在氧气中燃烧,该反应属于乙烯的氧化反应C .乙烯能使溴的四氯化碳溶液褪色,该反应属于加成反应D .将乙烯通入溴水中,反应后得到均一、透明的液体11.下列说法不正确...的是 A .O 2与O 3互为同素异形体B .35Cl 与37Cl 互为同位素,两者核外电子排布不同C .CH 4与C 3H 8一定互为同系物D .CH 3CH 2NO 2与H 2NCH 2COOH 互为同分异构体12.W 、X 、Y 、Z 四种短周期元素,它们在周期表中位置如图所示,下列说法正确的是A .四种元素中原子半径最大为W ,Y 元素通常没有最高正价B .酸性:H 2XO 3<H 2WO 3C .XZ 4、WY 2中所含化学键类型相同,熔点都很高D .W 、X 形成的单质都是重要的半导体材料13.环之间共用一个碳原子的化合物称为螺环化合物,螺[2,2]戊烷()是最简单的一种。

【市级联考】浙江省“温州十校联合体”2018-2019学年高二上学期期末考试数学试题-

【市级联考】浙江省“温州十校联合体”2018-2019学年高二上学期期末考试数学试题-
20.已知抛物线 过点 .
(1)求抛物线C的方程;
(2)求过点 的直线与抛物线C交于M,N两个不同的点(均与点A不重合).设直线AM,AN的斜率分别为 , ,求证: 为定值.
21.如图,在边长为2的正方形ABCD中,E为线段AB的中点,将△ADE沿直线DE翻折成△A′DE,使得平面A′DE⊥平面BCDE,F为线段A′C的中点.
故选:B.
【点睛】
本题主要考查了直线与圆的位置关系,以及充要条件的判断问题,其中解答中熟记直线与圆的位置关系的求解方法,以及充要条件的判定方法是解答的关键,着重考查了推理与计算能力,属于基础题.
5.B
【解析】
试题分析:由题意得,圆 的圆心 ,半径为 ;圆 的圆心 ,半径为 ,则 ,且 ,即 ,所以两圆相交,所以共有 条公切线,故选B.
A. B. C. D.
8.如图,在正方体 中, 是侧面 内一动点,若 到直线 与直线 的距离相等,则动点 的轨迹是
A.直线B.圆
C.双曲线D.抛物线
9.已知点 为抛物线 上的两点, 为坐标原点,且 ,则 的面积的最小值为( )
A.16B.8C.4D.2
10.若一个四面体的四个侧面是全等的三角形,则称这样的四面体为“完美四面体”,现给出四个不同的四面体 ,记 的三个内角分别为 , , ,其中一定不是“完美四面体”的为( )
参考答案
1.C
【解析】
直线 的斜率为
直线的倾斜角为: ,
可得:
故选
2.A
【解析】
试题分析:根据抛物线 的焦点坐标是 ,所以此题的答案应是 ,故选A.
考点:抛物线的焦点坐标和标准方程.
3.D
【解析】
试题分析:对于A,若 , 与 可能平行,故A错;对于B, 若 , 与 可以相交、异面直线、平行,故B错;对于C, 若 ,,l与 可以相交、异面直线、平行,故C错;对于D,根据线面垂直的性质定理可得若 ,则 ,故D正确.

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试地理试题

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试地理试题

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试地理试题一、选择题(本大题共25小题,每小题2分,共50分。

每小题列出的四个备选项中只有一个是符合题目要求的,不选、多选、错选均不得分)2018年12月7日12时12分,我国在酒泉卫星发射中心用长征二号丁运载火箭,成功将沙特-5A/5B卫星发射升空,搭载发射10颗小卫星。

卫星均进入预定轨道。

完成1-2题。

第1、2题图1.卫星获取地面图像并发送回地球,属于A.GPSB.RSC.GISD.GPRS2.火箭在穿过A层和B层时,温控系统显示的温度是A.一直升高B.一直降低C.先升高后降低D.先降低后升高3.地球上拥有可供生物生存所需的液态水、适宜的温度和比较厚的大气层。

这些条件被科学家称之为“金锁链条件”。

下列有关成因的分析不正确的是A.日地距离适中,温度适中B.体积和质量适中,有适宜的大气C.自转周期适中,昼夜温差较小D.大小行星各行其道,宇宙环境安全读丽江古城有关材料,回答4-5题。

4.与丽江古城夏无酷暑的气候特征有关的是 A .纬度较低,正午太阳高度角大 B.海拔较高,日照时间长 C.受夏季风影响,多阴雨天气 D.北有山地阻挡,冷空气不易进入5.丽江古城形成和发展,利用的有利地形条件有 ①丽江小坝子地势平坦,便于筑城; ②引雪山融水进入城中,航运便利; ③向东南方向敞开,有利于夏季风进入; ④北有山岭阻挡冬季风,冬无严寒; ⑤纬度较低白昼长,冬季温暖A.①③④B.①②⑤C.②④⑤D.①③⑤ 读图完成第6-7题。

第4、5题图有大气的地球情况没有大气的月球6.大力发展清洁能源,有利于直接减少的大气受热过程环节是 A.① B.② C.③ D.④7.结合材料,地球表面的昼夜温差远不如月球表面大的原因是 A.白天,地面获得的太阳辐射比月面多 B.夜间,地面辐射比月面辐射要弱 C.月球表面空气稀薄,吸收和保温作用都弱 D.地球表面大气较厚,吸收和保温作用都强峡湾是一种海侵后被淹没的特殊形式的槽谷。

2018~2019学年浙江省“温州十校联合体”高二上学期期末联考地理试题(解析版)

2018~2019学年浙江省“温州十校联合体”高二上学期期末联考地理试题(解析版)

绝密★启用前浙江省“温州市十校联合体”2018~2019学年高二上学期期末联考地理试题(解析版)考生须知:1.本卷共7页满分100分,考试时间90分钟;2.答题前,在答题卷指定区域填写班级、姓名、考场号、座位号及准考证号并填涂相应数字。

3.所有答案必须写在答题纸上,写在试卷上无效;4.考试结束后,只需上交答题纸。

选择题部分一、选择题(本大题共25小题,每小题2分,共50分。

每小题列出的四个备选项中只有一个是符合题目要求的,不选、多选、错选均不得分)2018年12月7日12时12分,我国在酒泉卫星发射中心用长征二号丁运载火箭,成功将沙特-5A/5B卫星发射升空,搭载发射10颗小卫星。

卫星均进入预定轨道。

完成下面小题。

1. 卫星获取地面图像并发送回地球,属于A. GPSB. RSC. GISD. GPRS2. 火箭在穿过A层和B层时,温控系统显示的温度是A. 一直升高B. 一直降低C. 先升高后降低D. 先降低后升高【答案】1. B 2. D【解析】【分析】试题考查大气的垂直分层。

【1题详解】卫星获取地面图像应用的是遥感技术(RS),B正确;GPS是全球定位系统,用于定位和导航;GIS是地理信息系统,主要用于地理信息数据的管理、查询、更新、空间分析和应用评价。

【2题详解】从图中看A层气温随高度增加而下降,B层气温随高度增加上升,火箭在穿过A层和B层时,温控系统显示的温度是先降低后升高,D正确。

【点睛】地理信息技术是指获取、管理、分析和应用地理空间信息的现代技术的总称,主要包括遥感(RS)、全球定位系统(GPS)和地理信息系统(GIS)等。

三者既各自独立发展又相互联系、相互促进。

遥感主要用于地理信息数据的获取,全球定位系统主要用于地理信息的空间定位,地理信息系统主要用来对地理信息数据进行管理、查询、更新、空间分析和应用评价。

3.地球上拥有可供生物生存所需的液态水、适宜的温度和比较厚的大气层。

这些条件被科学家称之为“金锁链条件”。

2018-2019学年浙江省温州市十校联合体高二(上)期末英语试卷解析版

2018-2019学年浙江省温州市十校联合体高二(上)期末英语试卷解析版

2018-2019学年浙江省温州市十校联合体高二(上)期末英语试卷一、阅读理解(本大题共10小题,共25.0分)AAfter the operation,Peter suffered severe pain,but insisted that he didn't need any treatment.One evening,he found Susan,his wife,crying in the kitchen of their apartment in a rare outburst of frustration."If you won't help yourself,no one else can," she said.Peter started a list "How to Help Myself",and on it he wrote,"Keep communicating with the doctors,even if they are dark thoughts." On October 20th,a few days before his 33 birthday,Peter wrote in a Facebook post,"It's been hard to get along with having an incurable Grade 4 brain cancer;it's been hard not to get angry and sad about it;and it's been hard to accept that modern medicine isn't able to fix me." But at the same time,he wrote,"Every day I wake up not-dead is a gift."Peter and Susan had other lists,detailing the things that they hoped to accomplish in life,which included a trip to Wimbledon;climbing Mt.Snowdon in Wales;and a list of musical wishes-from learning the Bach sonatas (奏鸣曲)and partitas (变奏曲)to performing the first violin part in a concert.Peter started working on Bach's six sonatas and partitas,the most difficult parts,which George Enescu,a world-famous violinist,once described as the Himalayas (喜马拉雅山)for violinists.Peter practiced every day,even if he could manage only fifteen minutes between medical treatments.As he mastered each piece,he posted his performances on Facebook.He finished on November 12th,then turned to the even more difficult Paganini caprices (随想曲),which he had often listened to in a recording by Itzhak Perlman."It's something I always wanted to play when I grew up,like wanting to be a great baseball player," he said.1.Susan cried in the kitchen because ______ .A. she suffered great pain from the Grade 4brain cancerB. Peter refused to get medical treatment after the operationC. nobody else wanted to help them out of the situationD. no money was left to pay for Peter's medical treatment2.Which of the following can best describe Peter's feeling when he wrote "Every day I wakeup not-dead is a gift."?______A. Grateful.B. Sad.C. Frustrated.D. Determined.3.The couple's list of things they hoped to accomplish in life included ______ .A. playing tennis in WimbledonB. cycling in Mt.Snowdon in WalesC. learning Mozart's sonatas and partitasD. playing the first violin part in a concert4.In the last paragraph,Bach's six sonatas and partitas is compared to the Himalayas forviolinists to stress ______ .A. its popularity among peopleB. its value for learnersC. its difficulty when being learnedD. its importance in violinists' eyes【答案】【小题1】B 【小题2】A 【小题3】D 【小题4】C【解析】1.B.细节理解题.根据第一段but insisted that he didn't need any treatment. One evening, he found Susan, his wife,crying in the kitchen of their apartment in a rare outburst of frustration.但他坚称他不需要任何治疗.一天晚上,他发现苏珊,他的妻子在他们的公寓的厨房里哭,所以答案选B.2.A.细节理解题.根据句子Every day I wake up not-dead is a gift.每天醒来,我发现自己还活着,这是一份礼物,可推知他是感激的,所以答案选A.3.D.细节理解题.根据第三段and a list of musical wishes-from learning the Bach sonatas (奏鸣曲) and partitas (变奏曲) to performing the first violin part in a concert.以及列出音乐愿望清单,希望学习巴赫奏鸣曲,在音乐会上演奏小提琴的第一部分,所以选D.4.C.推理判断题.根据最后一段Peter started working on Bach's six sonatas and partitas, the most difficult parts, which Ge orge Enescu, a world-famous violinist, once described as the Himalayas (喜马拉雅山) for violinists.彼得开始研究巴赫六奏鸣曲和变奏曲,最困难的部分,被乔治,艾涅斯库--世界著名小提琴家,描述为小提琴中的喜马拉雅山脉,可知是学起来是十分困难的,所以选C.本文讲述了Peter患了脑癌以后,在妻子的帮助下,感恩活着的每一天,完成了许多愿望清单.阅读理解题测试考生在阅读基础上的逻辑推理能力,要求考生根据文章所述事件的逻辑关系,对未说明的趋势或结局作出合理的推断;或根据作者所阐述的观点理论,对文章未涉及的现象、事例给以解释.考生首先要仔细阅读短文,完整了解信息,准确把握作者观点.BThere was great excitement on the planet of Venus (金星)this week.For the first time Venusian scientists managed to land a satellite on the planet Earth,and it has been sending back signals as well as photographs.The satellite was directed into an area known as Manhattan (曼哈顿).Because of excellent weather conditions and extremely strong signals,Venusian scientists were able to get valuable information about the feasibility of a manned flying saucer (飞碟)landing on Earth.A press conference was held at the Venus Institute of Technology."We have come to the conclusion,based on last week's satellite landing," Professor Zog said,"that there is no life on Earth.""How do you know this?" the science reporter of the Venus Evening News asked."For one thing,Earth's surface in the area of Manhattan consists of solid concrete (混泥土)and nothing can grow there.For another,the atmosphere is filled with carbon monoxide (一氧化碳)and other deadly gases and nobody could possibly breathe this air and survive." "Are there any other sources of danger that you have discovered in your studies?""Take a look at this photo.You see this dark black cloud staying over the surface of Earth?We don't know what it is made of,but it could give us a lot of trouble and we shall have to make further tests before we send a Venus Being there.Over here you will notice what seems to be a river,but the satellite findings indicates it is polluted and the water is unfit to drink." "Sir,what are all those tiny black spots on the photographs?""We're not certain.They seem to be metal objects that moves along certain roads.They giveout gases,make noise and keep crashing into each other.""Professor Zog,why are we spending billions and billions of Zilches to land a flying saucer on Earth when there is no life there?""Because if we Venusians can learn to breathe in the Earth atmosphere,then we can live anywhere."5.What does the underlined word " feasibility" in Paragraph 2 mean?______A. possibilityB. abilityC. simplicityD. responsibility6.What problems on the earth was not mentioned by the author?______A. Air pollution.B. Water pollution.C. Heavy traffic.D. Over population.7.Why did the author write the passage?______A. To tell us a dream of Venusian scientists.B. To show the secret of life on other planets.C. To persuade people to try living on the earth.D. To remind people on the earth of some problems.【答案】【小题1】A 【小题2】D 【小题3】D【解析】1.A.词义猜测题.根据上下文内容可知,Venusian scientists were able to get valuable information about the feasibility of a manned fl ying saucer (飞碟) landing on Earth句意为金星科学家能够获得有关载人飞碟降落在地球上的可能性的宝贵信息.故意为可能性.故选A.2.D.细节理解题.阅读全文,根据文章内容可知,作者提及了水污染,空气污染,交通拥堵问题,并没有提到地球上人口过多问题.故选D.3.D.推理判断题.根据最后一段Because if we Venusians can learn to breathe in an Earth atmosphere,then,we can live anywhere可知作者的目的是唤起保护地球的意识;故选D.本文属于说明文阅读,作者通过这篇文章主要向我们描述了金星上的科学家们至今首次成功登陆地球星球的一颗卫星,并已发回信号和照片发现被严重污染的地球无法生存,唤起保护地球的意识.考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.CThere's a new frontier (新领域)in 3D printing that's beginning to come into focus:food.Recent development has made possible machines that print,cook,and serve foods on a mass scale.And the industry isn't stopping there.Food productionWith a 3D printer,a cook can print complicated (复杂的)chocolate sculptures and beautiful pieces for decoration on a wedding cake.Not everybody can do that-it takes years of experience,but a printer makes it easy.A restaurant in Spain uses a Foodini to "re-create forms and pieces" of food that are "exactly the same," freeing cooks to complete other tasks.In another restaurant,all of the dishes and desserts it serves are 3D-printed,rather than farm to table.NutritionFuture 3D food printers could make processed food healthier.Hod Lipson,a professor at Columbia University,said,"Food printing could allow consumers to print food to meet their own nutritional needs,like vitamins.So instead of eating a piece of yesterday's bread from the supermarket,you'd eat something baked just for you on demand."ChallengesDespite recent advancements in 3D food printing,the industry has many challenges to overcome.Currently,most ingredients must be changed to a paste (糊状物)before a printer can use them,and the printing process is quite time-consuming,because ingredients interact with each other in very complex ways.On top of that,most of the 3D food printers now are restricted to dry ingredients,because meat and milk products may easily go bad.Some experts are skeptical about 3D food printers,believing they are better suited for fast food restaurants than homes and high-end restaurants.8.What benefit does 3D printing bring to food production?______A. It helps cooks to create new dishes.B. It makes the dishes more delicious.C. It saves time and effort in cooking.D. It contributes to restaurant decorations.9.According to Paragraph 3,3D-printed food ______ .A. is more available to customers.B. can keep all the nutrition in raw materials.C. is more tasty than food in supermarkets.D. can meet individual nutritional needs.10.What could be the best title of the passage?______A. 3D Food Printing:From Farm to TableB. 3D Food Printing:Delicious New TechnologyC. The Challenges for 3D Food ProductionD. A New Way to Improve 3D Food Printing【答案】【小题1】C 【小题2】D 【小题3】B【解析】1.C.细节理解题.根据第二段Not everybody can do that-it takes years of experience, but a printer makes it easy可知,并不是每个人都能那样做--它需要多年的经验,但一台打印机使这很容易.故选C.2.D.细节理解题.根据第三段中Food printing could allow consumer to print food with customized nutritional content, like vitamins可知,食物打印机能允许顾客打印定制的营养内容,像维生素类的食物.故选B.3.B.主旨大意题.本文主要介绍食物打印机,它能为我们制作出美味的食物.故选B.本文主要介绍食物打印机的利弊.好处是:它节省时间和精力,能根据顾客的喜好打印出食物的形状和营养成份,减少燃料的使用,可利用可再生资源;缺点是:目前的食物都是糊状物,这样很耗时,而大多数3D食物打印机现在被限制在干燥的烹饪原料.考查科教类阅读理解.这类题材是高考常考的内容,主要考查考生对文章整体内容的把握以及细节的理解,做题时要结合题干及上下文做出合理推理确定答案.二、阅读七选五(本大题共5小题,共10.0分)Research suggests that at least 64% of people now spend up to four hours daily of spare time in front of a screen.Just as TV watching has been linked to higher chances of being fat and getting diseases,this extra sedentary (久坐不动)time is bad news for our health.(1) .1.Choose outdoor activities over technologyWhen you're at home,make it a rule that you can't be online if the sun is shining.(2) .Then,after taking these healthy physical activities,you can pull out your phone or tablet,or take a seat at the computer.This rule should be fit for everyone in your family.2.Limit social media useAccording to some experts,the effect of technology on human relationships is worrying as technology has become a substitute for face-to-face human relationships.And Social networks have changed computer and mobile use for people of all ages.(3) .Avoid aimless browsing (浏览)and give your time online a purpose:research holidays or catch up on the news of the day.Then log off.3.(4)Challenge yourself to read at least 30 pages of a great book before you check your computer or mobile phone.Pick the right reading material and you'll soon find you've discovered an enjoyable pastime.4.Create projects for yourselfIt's amazing how much you can achieve when you're not glued to (长时间盯着)a screen.(5) .Some suggestions are organizing kitchen cupboards,cleaning your bedroom.Then try to do one each evening.A.Set aside reading timeB.Choose the suitable reading materialsC.Make a list of one-hour evening projectsD.Here are some ways to stop technology addictionE.Whether it's Facebook or Twitter,limit the time onlineF.The following are some ways to make better use of leisure timeG.Instead,you have to go for a walk,ride a bike,or swim at least an hour11. A. A B. B C. C D. D E.E F.F G. G12. A. A B. B C. C D. D E.E F.F G. G13. A. A B. B C. C D. D E.E F.F G. G14. A. A B. B C. C D. D E.E F.F G. G15. A. A B. B C. C D. D E.E F.F G. G【答案】【小题1】D 【小题2】G 【小题3】E 【小题4】A 【小题5】C【解析】DGEAC1.D.文章衔接题.根据前文介绍到额外的久坐时间对我们的健康来说是个坏消息.后文给出了四条建议.D项:Here are some ways to stop technology addiction.后文是停止长时间使用电脑和手机的方法和建议.符合文意,故选D.2.G.联系下文题.根据后文Then,after taking these healthy physical activities,you can pull out your phone or tablet,or take a seat at the computer.可知然后,在进行这些健康的体育活动后,你可以拔出手机或平板电脑,或者坐在电脑前.G项:Instead,you have to go for a walk,ride a bike,or swim at least an hour.相反,你必须去散步,骑自行车,或者至少游泳一个小时.符合文意,故选G.3.E.理解判断题.根据前文And Social networks have changed computer and mobile use for people of all ages.可知社交网络改变了所有年龄段的人使用电脑和移动设备的习惯.E项:Whether it's Facebook or Twitter,limit the time online.无论是Facebook还是Twitter,都要限制上网时间.符合文意,故选E.4.A.段落理解题.根据后文Challenge yourself to read at least 30 pages of a great book before you check your computer or mobile phone.可知在你查看你的电脑或手机之前,挑战自己至少阅读30页好书.A项:Set aside reading time.留出阅读时间.符合文意,故选A.5.C.逻辑推理题.根据后文Some suggestions are organizing kitchen cupboards,cleaning your bedroom.Then try to do one each evening.可知一些建议是整理厨房橱柜,打扫卧室,然后每天晚上做一个.C项:Make a list of one-hour evening projects.列出一个一小时的晚间活动清单.符合文意,故选C.研究表明,现在至少有54%的人每天在屏幕前花费四小时的空闲时间.就像看电视一样,肥胖和患病的几率越来越高,这额外的久坐时间对我们的健康来说是个坏消息.文章列了4条停止长时间使用电脑和手机的方法和建议.本文是一篇选句填空阅读,题目主要考查文章上下文联系以及句意理解.做题时学生应仔细阅读原文,把握文章主要内容,联系文章上下文内容并结合所给选项含义,从中选出正确答案,一定要做到有理有据,切忌胡乱猜测.三、完形填空(本大题共20小题,共30.0分)I was driving to a business appointment when I came to a very busy crossroad.The traffic light had just turned red.Suddenly,an unforgettable(16)caught my eye.A young couple,both blind,were(17)arm-in-arm across this busy crossroad with cars racing by in every direction.Each of them had a walking stick extended,searching for clues to(18)them.At first I was moved.They were trying to(19)what I felt was one of the most scary disability---blindness.It (20)be terrible to be blind.My thought was quickly interrupted by (21)when I saw that the couple were directly walking toward the middle of the crossroad.Without(22)the danger they were in,they were walking right into the path of oncoming cars.I was concerned because I didn't know (23)the other drivers understood what was happening.To my astonishment,I saw a(n)(24)scene unfold before my eyes.Every car in every direction came to a(n)(25).No sharp sounds of brakes or noisy horn were heard,(26)did anyone yell,"Get out of the way!" Everything (27).At that moment,time seemed to stand still for this couple.Amazed,I (28)the cars around me.I noticed that everyone's attention was fixed on the couple.(29)the driver to my right yelled,"To your right! To your right!" Other people(30)in union,shouting,"To your right!"The couple (31)their own course and they made it to the other side of the road.(32)they arrived at the roadside,one thing impressed me--they were (33)arm-in-arm.I was taken aback by the(34)expressions on their faces and judged that they had no idea what was really (35)around them.As I drove away,I did so with more awareness of life and care for others than ever before.16. A. scene B. car C. accident D. driver17. A. wandering B. walking C. rushing D. marching18. A. inspect B. guide C. preserve D. approach19. A. overcome B. achieve C. suffer D. recover20. A. can B. must C. may D. need21. A. sorrow B. regret C. terror D. frustration22. A. realizing B. recognizing C. removing D. preventing23. A. if B. until C. when D. unless24. A. painful B. sorrowful C. wonderful D. joyful25. A. agreement B. conclusion C. end D. stop26. A. nor B. none C. either D. or27. A. developed B. calmed C. froze D. changed28. A. looked for B. looked around C. looked up D. looked at29. A. Strangely B. Obviously C. Suddenly D. Hopefully30. A. responded B. followed C. replied D. reacted31. A. adopted B. adapted C. accepted D. adjusted32. A. Though B. Because C. Before D. As33. A. still B. even C. yet D. already34. A. astonished B. relieved C. emotionless D. hopeless35. A. going by B. going on C. breaking down D. breaking out 【答案】【小题1】A 【小题2】B 【小题3】B 【小题4】A 【小题5】B 【小题6】C 【小题7】A 【小题8】A 【小题9】C 【小题10】D 【小题11】A 【小题12】C 【小题13】D 【小题14】C 【小题15】B 【小题16】D 【小题17】D 【小题18】A 【小题19】C 【小题20】B 【解析】1-5 ABBAB 6-10 CAACD 11-15 ACDCB 16-20 DDACB1.A.考查名词及语境理解.根据scene unfold before my eyes可知,这是让作者难忘的一幕映入眼帘,故答案为A.2.B.考查动词及语境理解.根据下文when I saw that the couple were directly walking toward the middle of the crossroad可知,这对盲人夫妇胳膊挽着胳膊在过马路,故答案为B.3.B.考查动词及语境理解.根据前文Each of them had a walking stick extended, searching for clues to可知,他们是盲人,用拐杖引导他们自己,故答案为B.4.A.考查动词及语境理解.根据下文what I felt was one of the most scary disability---blindness可知,他们是在克服让作者最害怕的一种残疾,故答案为A.5.B.考查情态动词及语境理解.根据前文what I felt was one of the most scary disability---blindness可知,作者对于眼盲这种残疾一定是非常害怕的,故答案为B.6.C.考查名词及语境理解.根据下文when I saw that the couple were directly walking toward the middle of the crossroad可知,此刻作者为他们过马路而感到害怕,故答案为C.7.A.考查动词及语境理解.根据下文the danger they were in, they were walking right into the path of oncoming cars可知,他们没有意识到眼前的危险,故答案为A.8.A.考查连词及语境理解.根据前文I was concerned because I didn't know 可知,作者很是担心,是因为作者不知道其他司机是否注意到这对夫妇的情况,故答案为A.9.C.考查形容词及语境理解.根据下文No sharp sounds of brakes or noisy horn were heard可知,作者认为这是完美的一幕,故答案为C.10.D.考查名词及语境理解.根据下文At that moment, time seemed to stand still for this couple可知,不同方向的车都停止了前进,故答案为D.11.A.考查代词及语境理解.根据No sharp sounds of brakes or noisy horn were heard,(11)did anyone yell可知,也没有一个人大喊,表示前面的否定情况也适用于另外的人或事,用neither或nor,故答案为A.12.C.考查动词及语境理解.根据下文At that moment, time seemed to stand still for this couple可知,一切似乎都僵住了,故答案为C.13.D.考查动词短语及语境理解.A.looked for寻找;B.looked around朝四周看;C.looked up查阅;D.looked at看着;根据下文 I noticed that everyone's attention was fixed on the couple可知,作者看着所有的车辆,故答案为D.14.C.考查副词及语境理解.根据下文the driver to my right yelled, "To your right! To your right!" 可知,突然,有人大喊道,故答案为C.15.B.考查动词及语境理解.根据下文in union, shouting, "To your right!"可知,其他人也跟着喊了起来,故答案为B.16.D.考查动词及语境理解.根据下文their own course and they made it to the other side of the road可知,这对盲人夫妇调整了他们前进的方向,故答案为D.17.D.考查连词及语境理解.根据下文they arrived at the roadside, one thing impressed me可知,当他们走到对面的时候,有一件事情给作者留下了深刻的印象,故答案为D.18.A.考查副词及语境理解.根据one thing impressed me--they were (18)arm-in-arm 可知,有一件事情给作者留下了深刻的印象--那就是他们仍然胳膊挽着胳膊,故答案为A.19.C.考查形容词及语境理解.根据下文expressions on their faces and judged that they had no idea what was really 可知,他们的脸上没有多少情感的流露,故答案为C.20.B.考查动词短语及语境理解.A.going by 经过;B.going on继续;C.breaking down出故障;D.breaking out 爆发;根据they had no idea what was really (20)around them可知,他们不知道周围发生着什么,故答案为B.这是一篇记叙性文章.主要讲述了作者在开车赴一个商务约会时,来到一个繁忙的路口遇到了一对双目失明的夫妇的故事.最终在作者和他人的帮助下,这对夫妇安全了.这件事发生之后,作者比以往任何时候都更加关心生命和关心他人.近几年高考试题中的完形填空有新的变化,试题所涉及的知识面不断拓宽,综合难度不断提高.做完型填空首先要通读全文,了解大意.一篇完形填空的文章有许多空格,所以,必须先通读一至两遍,才能大概了解文章的内容.千万不要看一句,做一句.其次要逐句分析,前后一致.选择答案时,要考虑整个句子的内容,包括搭配、时态、语法等.答案全填完后,再通读一遍文章,检查是否通顺流畅了,用词得当,意思正确.四、语法填空(本大题共1小题,共15.0分)36.As populations increased in large cities in (1) nineteenth century,building subway lineswas a way (2) (move)people from one area of a city to another quickly andefficiently.The first major subway system,the London Underground,(3) (start)in 1873 using steam trains.Subways caught on quickly in London.From 1896,it was changed in favor of an electrical system.Today's subways around the world now work on(4) (electrical).Passengers can rely on the regular schedule of subway trains while (5)(avoid)traffic on busy city streets.Two of the world's earliest subways were built in Paris and New York.When the Paris Metro opened on July 19,1900,citizens were proud of the (6) (impress)andbeautifully decorated station entrances.(7) the first New York subway consisted (8) only14.5 kilometers of track in 1904,today,it is the world's largest subway system.Today,subways are still popular with passengers.The Tokyo subway is the (9) (busy)in the world,with 3.2 billion riders a year.Close behind (10) (be)subways in Moscow (2.4 billion),Seoul (2.1 billion),and New York City (1.6 billion).【答案】【小题1】the【小题2】to move【小题3】started【小题4】electricity【小题5】avoiding【小题6】impressive【小题7】Although/Though/While【小题8】of【小题9】busiest【小题10】are【解析】1.the,考查冠词,序数词前面需要加定冠词,故填the.2. to move,考查不定式,way后跟不定式作后置定语,故填to move.3. started,考查时态,指1873年,所以用一般过去时态,故填started.4. electricity,考查名词,作介词的宾语,所以用名词,故填electricity.5. avoiding,考查现在分词,avoid和句子主语之间是主动关系,所以用现在分词作状语.6. impressive,考查形容词,作定语修饰名词,所以用形容词,故填impressive.7. Although/Though/While,考查连词,表示"尽管",引导让步状语从句,故填Although/Though/While.8. of,考查郭冬冬,consist of由…组成,故填of.9. busiest,考查最高级,作表语,前面有定冠词,所以用形容词最高级,故填busiest.10. are,考查主谓一致,此句为倒装句,主语为空格后面的,为复数名词,故填are.本文介绍了世界各地的地铁,起源及发展.第一个主要的地铁系统,伦敦地铁,从1873年开始使用蒸汽火车.世界上最早的两条地铁是在巴黎和纽约修建的.如今,地铁仍然深受乘客欢迎.东京地铁是世界上最繁忙的地铁.本题主要考查了用单词或短语的适当形式填空.做本题的关键是在理解短文的基础上,灵活运用所学的基础知识.本题考到的知识点有:固定的短语,词类的转换,名词的复数形式,副词以及祈使句的用法等.因此,这就需要在平时的学习中,牢固掌握各语言点及一些语法知识.五、书面表达(本大题共2小题,共40.0分)37.假如你是李华,你的美国网友Peter参加中国象棋网络挑战赛获得了一等奖.请根据以下提示写一封英文电子邮件向他表示祝贺.1.祝贺他获奖;2.肯定他付出的努力;3.询问何时方便,在网上切磋棋艺.注意:1.词数80左右;2.可以适当增加细节,以使行文连贯;3.开头和结尾已为你写好.参考词汇:中国象棋网络挑战赛the Chinese Chess Network ChallengeDear Peter,I am writing to offer my sincere congratulations …______Congratulations again.Yours,Li Hua.【答案】to you on your winning the first prize in the Chinese Chess Network Challenge.As your friend,I just want you to know how glad I am at your success.(高分句型一)"Everything comes to him who waits."For these years,you've shown great interest in Chinese chess and kept on practicing it every day.Not only have you read many books about Chinese chess strategy,but also you have competed in all kinds of Chinese chess contest.(高分句型二)Finally,you succeeded in winning the online competition!So I'm so happy that you become champion of this network challenge.At last,I hope to play Chinese chess with you so that we can make progress together.(高分句型三)Please tell me when you have time.【解析】Dear PetetI am writing to offer my sincere congratulations to you on your winning the first prize in the Chinese Chess Network Challenge.As your friend,I just want you to know how glad I am at your success.(高分句型一)"Everything comes to him who waits."For these years,you've shown great interest in Chinese chess and kept on practicing it every day.Not only have you read many books about Chinese chess strategy,but also you have competed in all kinds of Chinese chess contest.(高分句型二)Finally,you succeeded in winning the online competition!So I'm so happy that you become champion of this network challenge.At last,I hope to play Chinese chess with you so that we can make progress together.(高分句型三)Please tell me when you have time.Congratulations again.Yours,Li Hua本篇书面表达属于提纲类作文,根据提示信息假如你是李华,你的美国网友Peter参加中国象棋网络挑战赛获得了一等奖.请根据以下提示写一封英文电子邮件向他表示祝贺.写作时注意以下几点:1、仔细阅读有关提示,弄清试题提供的所有信息,明确几个要点:1)祝贺他获奖;2)肯定他付出的努力;3)询问何时方便,在网上切磋棋艺.2、提纲是文章的总体框架,要在提纲的范围内进行分析、构思和想象.要依据提示情景或词语,按照一定逻辑关系来写.本文写作时可以按照要点所给的顺序写.3、根据要表达的内容确定句子的时态、语态.4.注意使用高级词汇和句式,以增加文章的亮点.【亮点说明】本文结构紧凑,层次分明,而且使用了多种表达:the first prize一等奖;keep on 一直做某事;Not only,but also不仅,而且;Finally最后;make progress 取得进步;succeed in doing成功做成某事;As your friend,I just want you to know how glad I am at your success.(高分句型一)Not only have you read many books about Chinese chess strategy,but also you have competed in all kinds of Chinese chess contest.(高分句型二)At last,I hope to play Chinese chess with you so that we can make progress together.(高分句型三)英语写作是一项主观性较强的测试题.它不仅考查学生的写作基础而且还考查学生在写作过程中综合运用语言的能力.在撰写时要注意主谓语一致,时态呼应,用词贴切等.要提高英语写作水平,需要两方面的训练:一是语言基础方面的训练,要有扎实的造句、翻译等基本功,即用词法、句法等知识造出正确无误的句子;二是写作知识和能力方面的训练以掌握写作方面的基本方法和技巧.38.In 1989, fresh out of high school, I had the difficult task of choosing a career path before college started in three months. In those days in Pakistan, there were limited cho ices: becoming a doctor or an engineer, or entering the financial world after getting a business degree. I wasn't interested in engineering, so that I was left with medicine o r business. I couldn't decide.My uncle suggested that I do a work placement(实习) to experience it for a month in an international company followed by a month in a hospital. After that, I could make a decision. It seemed like a good idea.I was accepted for a month's placement at a foreign bank in Karachi. I got a feel forhow the world of finance functioned, made new friends, and generally enjoyed the m ostly easy-going work surroundings.The month passed rapidly, and soon I began working at a leading hospital in Karach i. The experience couldn't have been more different. The hospital had a stressful envi ronment. The days started early (at 7 am, compared to 9am at the bank), and were filled with endless duties. And the night calls! This was c razy, working all day, through the night, and again the next day.I began thinking about my two experiences. The bank had offered a more relaxing atmosphere, better working hours and less stress. The hospital was full of excitement , but the studying and training was difficult. It seemed that the business choice was g oing to win out.Near the end of my month at the hospital, I was driving home after an especially bu sy night call. In front of me was a public bus, with college students sitting on the top . As the driver weaved through (穿梭) traffic, I could see the boys shaking from side to side.注意:1.所续写短文的词数应为150左右;2.应使用5个以上短文中标有下划线的关键词语;3.续写部分分为两段,每段开头语已为你写好;4.续写完成后,请用下划线标出你所使用的关键词语;Paragraph 1:Suddenly, a boy fell off the back of the bus.Paragraph 2:The next day, when I went to the hospital to see the boy, all his family got up, with grateful smiles on their faces.【答案】Paragraph 1:Suddenly, a boy fell off the back of the bus. He hit the road face down and rolled over.He lay still in the middle of the road as the bus sped away. None of the cars behind stoppe d.(事情经过)Thinking that he could die in a matter of minutes, I stopped my car and carefully exa mined the boy.【高分句型一】 With the help of some passers-by, I lifted the unconscious boy into the car and raced b ack to the hospital. After his family was contacted, and he was wheeled into emergency s urgery, I drove home, exhausted but happy.(送昏迷的男孩去医院)Paragraph 2:The next day, when I went to the hospital to see the boy, all his family got up, with grateful smiles on their faces.(男孩家人感激作者)What a feeling it was to help save the life of another person! I spent the rest of the day in a sta te of the most fabulous mood I had ever experienced.Driving home that evening, I deci ded on my career path. Two months of placements could not do what 30 minutes' helping a n accident victim had done for me.(作者的感受) This experience taught me that at times, the decisions are made for you-and that whate ver happens is always for the best.【高分句型二】(得到启发)【解析】高分句型一:Thinking that he could die in a matter of minutes, I stopped my car and carefully examined the boy.译文:我以为他会在几分钟内死去,就停下车仔细检查了那个男孩.分析:这句话使用现在分词作状语.高分句型二: This experience taught me that at times, the decisions are made for you-and that whate ver happens is always for the best.译文:这段经历告诉我,有时候,决定是为你做的,无论发生什么,总是为了最好.分析:这句话使用that引导宾语从句,whatever引导让步状语从句.这是一篇续写类作文,我们需要用正确的英语把给出的要点表达出来.动笔前,一定要认真分析要点,理解要点要表达的含义,不能遗漏要点,跑题偏题.本作文中给出的要点比较具体,故需要准确表达.写作时注意准确运用时态,上下文意思连贯,符合逻辑关系,尽量使用自己熟悉的单词句式,同时也要注意使用高级词汇和高级句型使文章显得更有档次.特别注意在选择句式时要赋予变化.平时除了加强词汇积累,写作联系以外,还可以适当记忆一些类似的范文,这样在考试中可以起到事半功倍的效果.。

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试生物试题 Word版含答案

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试生物试题 Word版含答案

绝密★考试结束前2018学年第一学期“温州十校联合体”期末考试联考高二年级生物学科试题考生须知:1.本卷共8 页,满分100分,考试时间90分钟;2.答题前,在答题卷指定区域填写班级、姓名、考场号、座位号及准考证号并填涂相应数字;3.所有答案必须写在答题纸上,写在试卷上无效;4.考试结束后,只需上交答题纸。

一.选择题(本大题共28小题,每小題2分,共56分。

每小题列出的四个备选项中只有一个是符合题目要求的,不选、多选、错选均不得分)1.下列有关蛋白质和核酸的叙述中,正确..的是A.组成每一种蛋白质的氨基酸均有20种B.DNA中含有A、U、G、C四种碱基C.蛋白质热变性后还能与双缩脲试剂发生作用呈现紫色D.烟草中含有5种核苷酸2.下列各组细胞器均具单层膜的是A.高尔基体和核糖体B.中心体和叶绿体C.内质网和线粒体D.溶酶体和液泡3.下列有关人体细胞生命历程的叙述错误..的是A.整个生命活动中都存在着细胞分化B.细胞分化的实质是基因选择性表达C.衰老的细胞内各种酶活性均降低D.癌细胞表面粘连蛋白减少,易发生转移4.下列关于人类与环境的叙述正确..的是A.全球气候变暖会改变全球降雨格局,影响农业生产B.对人类没有利用价值的物种灭绝不会影响人类的发展C.目前人类通过保护和治理水体,水污染的问题已经解决D.大气中二氧化硫的增加会引起温室效应,使地球变暖5.A TP是细胞内的能量“通货”,下列有关A TP的说法错误..的是A.ATP在细胞中含量少,但ATP与ADP相互转化速度很快B.ATP是DNA的基本组成单位之一C.光下叶肉细胞的细胞溶胶、线粒体和叶绿体中都有A TP合成D.ATP末端的高能磷酸键易断裂也易形成6.美人鱼综合征是一种极其罕见的先天性下肢畸形疾病,其内因可能是基因的某些碱基对发生了改变,引起早期胚胎出现了不正常的发育,患病的新生儿出生后只能够存活几个小时。

以下有关基因突变的说法错误..的是A.该变异属于致死突变B.该实例说明了基因突变的稀有性和有害性C.碱基对的改变会导致遗传信息改变,生物的性状不一定会改变D.基因突变是生物变异的主要来源7.将水稻培养在含各种营养元素的培养液中,发现水稻吸收Mg2+多,吸收Ca2+少。

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试数学试题(精品版)

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试数学试题(精品版)

2018-2019学年浙江省温州市十校联合体高二(上)期末数学试卷一、选择题:本大题共10小题,每小题4分,共40分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.(4分)直线3x﹣y+1=0的倾斜角是()A.30°B.60°C.120°D.135°2.(4分)抛物线y2=4x的焦点坐标是()A.(1,0)B.(0,1)C.(2,0)D.(0,2)3.(4分)设l,m是两条不同的直线,α是一个平面,则下列命题正确的是()A.若l⊥m,m⊂α,则l⊥αB.若l∥α,m∥α,则l∥mC.若l∥m,m⊂α,则l∥αD.若l⊥α,m⊥α,则l∥m4.(4分)“直线y=x+b与圆x2+y2=1相交”是“0<b<1”的()A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也不必要条件5.(4分)圆C1:x2+y2+2x+8y﹣8=0与圆C2:x2+y2﹣4x﹣4y﹣1=0的公切线条数为()A.1B.2C.3D.46.(4分)双曲线的左、右焦点分别为F1,F2,在左支上过点F1的弦AB的长为5,那么△ABF2的周长是()A.12B.16C.21D.267.(4分)在正四棱柱ABCD﹣A1B1C1D1中,AA1=2AB,E为AA1的中点,则直线BE与平面BCD1所形成角的余弦值为()A.B.C.D.8.(4分)如图,在正方体ABCD﹣A1B1C1D1中,P是侧面BB1C1C内一动点,若P到直线BC与直线C1D1的距离相等,则动点P的轨迹所在的曲线是()A.直线B.圆C.双曲线D.抛物线9.(4分)已知点A,B为抛物线y2=4x上的两点,O为坐标原点,且OA⊥OB,则△OAB的面积的最小值为()A.16B.8C.4D.210.(4分)若一个四面体的四个侧面是全等的三角形,则称这样的四面体为“完美四面体”,现给出四个不同的四面体A k B k∁k D k(k=1,2,3,4),记△A k B k∁k的三个内角分别为A k,B k,∁k,其中一定不是“完美四面体”的为()A.A1:B1:C1=3:5:7B.sin A2:sin B2:sin C2=3:5:7C.cos A3:cos B3:cos C3=3:5:7D.tan A4:tan B4:tan C4=3:5:7二、填空题:本大题共7小题,多空题每题6分,单空题每题4分,共36分.11.(6分)双曲线﹣=1的焦距为,渐近线方程为.12.(6分)已知直线l:mx﹣y=1,若直线l与直线x+m(m﹣1)y=2垂直,则m的值为,动直线l:mx﹣y=1被圆C:x2﹣2x+y2﹣8=0截得的最短弦长为.13.(6分)某几何体的三视图如图(单位:cm),则该几何体的体积为cm3,表面积为cm3.14.(6分)在平面直角坐标系中,A(a,0),D(0,b),a≠0,C(0,﹣2),∠CAB=90°,D是AB的中点,当A在x轴上移动时,a与b满足的关系式为;点B的轨迹E的方程为.15.(4分)已知椭圆的左焦点为F,A(﹣a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于,则椭圆的离心率为.16.(4分)设E,F分别是正方体ABCD﹣A1B1C1D1的棱DC上两点,且AB=2,EF=1,给出下列四个命题:①三棱锥D1﹣B1EF的体积为定值;②异面直线D1B1与EF所成的角为45°;③D1B1⊥平面B1EF;④直线D1B1与平面B1EF所成的角为60°.其中正确的命题为.17.(4分)阿波罗尼斯是古希腊著名数学家,与欧几里得、阿基米德被称为亚历山大时期数学三巨匠,他对圆锥曲线有深刻而系统的研究,主要研究成果击中在他的代表作《圆锥曲线》一书,阿波罗尼斯圆是他的研究成果之一,指的是:已知动点M与两定点A、B的距离之比为λ(λ>0,λ≠1),那么点M的轨迹就是阿波罗尼斯圆.下面,我们来研究与此相关的一个问题.已知圆:x2+y2=1和点,点B(1,1),M 为圆O上动点,则2|MA|+|MB|的最小值为.三、解答题(共5小题,满分74分)18.(14分)设命题p:方程表示双曲线;命题q:斜率为k的直线l过定点P(﹣2,1),且与抛物线y2=4x有两个不同的公共点.若p,q都是真命题,求k的取值范围.19.(15分)如图,在正三棱柱ABC﹣A1B1C1中,AB=AA1=2,点P,Q分别为A1B1,BC的中点.(1)求异面直线BP与AC1所成角的余弦值;(2)求直线CC1与平面AQC1所成角的正弦值.20.(15分)已知抛物线C;y2=2px过点A(1,1).(1)求抛物线C的方程;(2)过点P(3,﹣1)的直线与抛物线C交于M,N两个不同的点(均与点A不重合),设直线AM,AN的斜率分别为k1,k2,求证:k1•k2为定值.21.(15分)如图,在边长为2的正方形ABCD中,E为线段AB的中点,将△ADE沿直线DE翻折成△A′DE,使得平面A′DE⊥平面BCDE,F为线段A′C的中点.(Ⅰ)求证:BF∥平面A′DE;(Ⅱ)求直线A′B与平面A′DE所成角的正切值.22.(15分)已知椭圆C:+=1(a>b>0)的离心率为,直线l:x+2y=4与椭圆有且只有一个交点T.(I)求椭圆C的方程和点T的坐标;(Ⅱ)O为坐标原点,与OT平行的直线l′与椭圆C交于不同的两点A,B,直线l′与直线l交于点P,试判断是否为定值,若是请求出定值,若不是请说明理由.2018-2019学年浙江省温州市十校联合体高二(上)期末数学试卷参考答案与试题解析一、选择题:本大题共10小题,每小题4分,共40分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.(4分)直线3x﹣y+1=0的倾斜角是()A.30°B.60°C.120°D.135°【分析】根据直线求出它的斜率,再求出倾斜角.【解答】解:直线3x﹣y+1=0的斜率为k==,∴tanα=,∴倾斜角是60°.故选:B.【点评】本题考查了根据直线方程求倾斜角的问题,是基础题.2.(4分)抛物线y2=4x的焦点坐标是()A.(1,0)B.(0,1)C.(2,0)D.(0,2)【分析】由抛物线y2=2px的焦点坐标为(,0),即有p=2,即可得到焦点坐标.【解答】解:由抛物线y2=2px的焦点坐标为(,0),即有抛物线y2=4x的2p=4,即p=2,则焦点坐标为(1,0),故选:A.【点评】本题考查抛物线的方程和性质,主要考查抛物线的焦点,属于基础题.3.(4分)设l,m是两条不同的直线,α是一个平面,则下列命题正确的是()A.若l⊥m,m⊂α,则l⊥αB.若l∥α,m∥α,则l∥mC.若l∥m,m⊂α,则l∥αD.若l⊥α,m⊥α,则l∥m【分析】在A中,l与α相交、平行或l⊂α;在B中,l与m相交、平行或异面;在C中,l∥α或l⊂α;在D中,由线面垂直的性质定理得l∥m.【解答】解:由l,m是两条不同的直线,α是一个平面,知:在A中,若l⊥m,m⊂α,则l与α相交、平行或l⊂α,故A错误;在B中,若l∥α,m∥α,则l与m相交、平行或异面,故B错误;在C中,若l∥m,m⊂α,则l∥α或l⊂α,故C错误;在D中,若l⊥α,m⊥α,则由线面垂直的性质定理得l∥m,故D正确.故选:D.【点评】本题考查命题真假的判断,考查空间中线线、线面、面面间的位置关系等基础知识,考查运算求解能力,考查函数与方程思想,是中档题.4.(4分)“直线y=x+b与圆x2+y2=1相交”是“0<b<1”的()A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也不必要条件【分析】直线y=x+b与圆x2+y2=1相交,可得(0,b)在圆内,b2<1,求出﹣1<b<1,即可得出结论.【解答】解:直线y=x+b恒过(0,b),∵直线y=x+b与圆x2+y2=1相交,∴(0,b)在圆内,∴b2<1,∴﹣1<b<1;0<b<1时,(0,b)在圆内,∴直线y=x+b与圆x2+y2=1相交.故选:B.【点评】本题考查直线与圆的位置关系,考查四种条件的判断,比较基础.5.(4分)圆C1:x2+y2+2x+8y﹣8=0与圆C2:x2+y2﹣4x﹣4y﹣1=0的公切线条数为()A.1B.2C.3D.4【分析】根据题意,分析两圆的圆心与半径,由圆与圆的位置关系可得两圆相交,据此分两圆的共切线条数即可得答案.【解答】解:根据题意,圆C1:x2+y2+2x+8y﹣8=0,即(x+1)2+(y+4)2=25,其圆心C1为(﹣1,﹣4),半径r1=5,圆C2:x2+y2﹣4x﹣4y﹣1=0,即(x﹣2)2+(y﹣2)2=9,其圆心C2为(2,2),半径r2=3,分析可得:|C1C2|==3,则有r1﹣r2=2<|C1C2|<r1+r2=8,则两圆相交,有2条公切线;故选:B.【点评】本题考查圆与圆位置关系的判定,涉及两圆公切线条数的判定,属于基础题.6.(4分)双曲线的左、右焦点分别为F1,F2,在左支上过点F1的弦AB的长为5,那么△ABF2的周长是()A.12B.16C.21D.26【分析】依题意,利用双曲线的定义可求得|AF2|﹣|AF1|=2a=8,|BF2|﹣|BF1|=2a=8,从而可求得△ABF2的周长.【解答】解:依题意,|AF2|﹣|AF1|=2a=8,|BF2|﹣|BF1|=2a=8,∴(|AF2|﹣|AF1|)+(|BF2|﹣|BF1|)=16,又|AB|=5,∴(|AF2|+|BF2|)=16+(|AF1|+|BF1|)=16+|AB|=16+5=21.∴|AF2|+|BF2|+|AB|=21+5=26.即△ABF2的周长是26.故选:D.【点评】本题考查双曲线的简单性质,着重考查双曲线定义的灵活应用,属于中档题.7.(4分)在正四棱柱ABCD﹣A1B1C1D1中,AA1=2AB,E为AA1的中点,则直线BE与平面BCD1所形成角的余弦值为()A.B.C.D.【分析】以D为原点,DA为x轴,DC为y轴,DD1为z轴,建立空间直角坐标系,利用向量法能求出直线BE 与平面BCD1所形成角的余弦值.【解答】解:以D为原点,DA为x轴,DC为y轴,DD1为z轴,建立空间直角坐标系,设AA1=2AB=2,则B(1,1,0),E(1,0,1),C(0,1,0),D1(0,0,2),=(0,﹣1,1),=(1,0,0),=(0,﹣1,2),设平面BCD1的法向量=(x,y,z),则,取z=1,得=(0,2,1),设直线BE与平面BCD1所形成角为θ,则sinθ===.cosθ==∴直线BE与平面BCD1所形成角的余弦值为.故选:C.【点评】本题考查线面角的余弦值的求法,考查空间中线线、线面、面面间的位置关系等基础知识,考查运算求解能力,考查函数与方程思想,是中档题.8.(4分)如图,在正方体ABCD﹣A1B1C1D1中,P是侧面BB1C1C内一动点,若P到直线BC与直线C1D1的距离相等,则动点P的轨迹所在的曲线是()A.直线B.圆C.双曲线D.抛物线【分析】由线C1D1垂直平面BB1C1C,分析出|PC1|就是点P到直线C1D1的距离,则动点P满足抛物线定义,问题解决.【解答】解:由题意知,直线C1D1⊥平面BB1C1C,则C1D1⊥PC1,即|PC1|就是点P到直线C1D1的距离,那么点P到直线BC的距离等于它到点C1的距离,所以点P的轨迹是抛物线.故选:D.【点评】本题考查抛物线定义及线面垂直的性质.9.(4分)已知点A,B为抛物线y2=4x上的两点,O为坐标原点,且OA⊥OB,则△OAB的面积的最小值为()A.16B.8C.4D.2【分析】先设直线的方程为斜截式(有斜率时),代入抛物线,利用OA⊥OB找到k,b的关系,然后利用弦长公式将面积最后表示成k的函数,然后求其最值即可.最后求出没斜率时的直线进行比较得最终结果.【解答】解:当直线斜率存在时,设直线方程为y=kx+b.由消去y得k2x2+(2kb﹣4)x+b2=0.设A(x1,y1),B(x2,y2),由题意得△=(2kb﹣4)2﹣4k2b2>0,即kb<1.x1+x2=,x1x2=,所以y1y2=k2x1x2+kb(x1+x2)+b2=.所以由OA⊥OB得•=x1x2+y1y2=+=0所以b=﹣2pk,①代入直线方程得y=kx﹣4k=k(x﹣4),所以直线过定点(4,0).再设直线方程为x=my+4,代入y2=4x得y2﹣4my﹣16=0,所以y1+y2=4m,y1y2=﹣16,所以|y1﹣y2|====2,所以S=×4×,所以当m=0时,S的最小值为8.故选:B.【点评】本题考查了直线和圆锥曲线的位置关系中的弦长问题中的最值问题,一般先结合韦达定理将要求最值的量表示出来,然后利用函数思想或基本不等式求最值即可.10.(4分)若一个四面体的四个侧面是全等的三角形,则称这样的四面体为“完美四面体”,现给出四个不同的四面体A k B k∁k D k(k=1,2,3,4),记△A k B k∁k的三个内角分别为A k,B k,∁k,其中一定不是“完美四面体”的为()A.A1:B1:C1=3:5:7B.sin A2:sin B2:sin C2=3:5:7C.cos A3:cos B3:cos C3=3:5:7D.tan A4:tan B4:tan C4=3:5:7【分析】若sin A2:sin B2:sin C2=3:5:7,由正弦定理得:B2C2:A2C2:A2B2=3:5:7,设B2C2=3x,A2C2=5x,A2B2=7x,由“完美四面体”的四个侧面是全等的三角形,得到D2A2=3x,D2B2=5x,D2C2=7x,列方程推导出这样的四面体不存在,从而D2A2B2C2一定不是完美的四面体.【解答】解:若sin A2:sin B2:sin C2=3:5:7,由正弦定理得:B2C2:A2C2:A2B2=3:5:7,设B2C2=3x,A2C2=5x,A2B2=7x,∵“完美四面体”的四个侧面是全等的三角形,∴D2A2=3x,D2B2=5x,D2C2=7x,把该四面体顶点当成长方体的四个顶点,四条棱当作长方体的四条面对角线,则长方体面上对角线长为3x,5x,7x,设长方体棱长为a,b,c,则,以上方程组无解,∴这样的四面体不存在,∴四个侧面不全等,故D2A2B2C2一定不是完美的四面体.故选:B.【点评】本题考查四面体的性质及长方体的性质、新定义问题,考查空间几何体性质等基础知识,考查运算求解能力,是难题.二、填空题:本大题共7小题,多空题每题6分,单空题每题4分,共36分.11.(6分)双曲线﹣=1的焦距为6,渐近线方程为y=±x.【分析】根据题意,由双曲线的标准方程分析可得双曲线的焦点位置以及a、b的值,计算可得c的值,即可得双曲线的焦距,由双曲线的渐近线方程分析可得答案.【解答】解:根据题意,双曲线的方程为﹣=1,其焦点在x轴上,且a=,b==2,则c==3,则双曲线的焦距2c=6,渐近线方程为y=±x;故答案为:6,y=±x.【点评】本题考查双曲线的几何性质,关键是掌握双曲线标准方程的形式.12.(6分)已知直线l:mx﹣y=1,若直线l与直线x+m(m﹣1)y=2垂直,则m的值为0或2,动直线l:mx﹣y=1被圆C:x2﹣2x+y2﹣8=0截得的最短弦长为.【分析】直接由直线垂直与系数的关系列式求得m值;化圆的方程为标准方程,作出图形,数形结合求解.【解答】解:∵直线mx﹣y=1与直线x+m(m﹣1)y=2垂直,∴m×1+(﹣1)×m(m﹣1)=0,解得m=0或m=2;动直线l:mx﹣y=1过定点(0,﹣1),圆C:x2﹣2x+y2﹣8=0化为(x﹣1)2+y2=9,圆心(1,0)到直线mx﹣y﹣1=0的距离的最大值为,∴动直线l:mx﹣y=1被圆C:x2﹣2x+y2﹣8=0截得的最短弦长为2=.故答案为:0或2;.【点评】本题考查直线与圆的位置关系,考查数形结合的解题思想方法和数学转化思想方法,是中档题.13.(6分)某几何体的三视图如图(单位:cm),则该几何体的体积为cm3,表面积为8+4cm3.【分析】由三视图还原原几何体,可知该几何体为四棱锥,侧棱PA⊥底面ABCD,底面ABCD为正方形,再由体积及表面积公式求解.【解答】解:由三视图还原原几何体如图,该几何体为四棱锥,侧棱PA⊥底面ABCD,底面ABCD为正方形,则该几何体的体积为V=;表面积为S==.故答案为:;.【点评】本题考查由三视图求面积、体积,关键是由三视图还原原几何体,是中档题.14.(6分)在平面直角坐标系中,A(a,0),D(0,b),a≠0,C(0,﹣2),∠CAB=90°,D是AB的中点,当A在x轴上移动时,a与b满足的关系式为a2=2b;点B的轨迹E的方程为y=x2(x≠0).【分析】求出AC和AB的斜率,根据∠CAB=90°得出斜率之间的关系,列方程即可得出答案.【解答】解:∵∠CAB=90°,∴k AC•k AB=﹣1,又k AC=,k AB=k AD=,∴﹣=﹣1,即a2=2b.设B(x,y),∵D是AB的中点,∴x=﹣a,y=2b,∵a2=2b,∴x2=y,∴B点轨迹方程为y=x2(x≠0).故答案为a2=2b,y=x2(x≠0).【点评】本题考查了轨迹方程的求解,属于中档题.15.(4分)已知椭圆的左焦点为F,A(﹣a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于,则椭圆的离心率为.【分析】由题意可得直线AB的方程:bx﹣ay+ab=0,利用点F(﹣c,0)到直线AB的距离公式可求得d=,整理可得答案.【解答】解:依题意得,AB的方程为+=1,即:bx﹣ay+ab=0,设点F(﹣c,0)到直线AB的距离为d,∴d==,∴5a2﹣14ac+8c2=0,∴8e2﹣14e+5=0,∵e∈(0,1)∴e=或e=(舍).故答案为:.【点评】本题考查椭圆的简单性质,考查点到直线间的距离公式,考查转化与运算能力,属于中档题.16.(4分)设E,F分别是正方体ABCD﹣A1B1C1D1的棱DC上两点,且AB=2,EF=1,给出下列四个命题:①三棱锥D1﹣B1EF的体积为定值;②异面直线D1B1与EF所成的角为45°;③D1B1⊥平面B1EF;④直线D1B1与平面B1EF所成的角为60°.其中正确的命题为①②.【分析】①根据题意画出图形,结合图形求出三棱锥D1﹣B1EF的体积为定值;②求得异面直线D1B1与EF所成的角为45°;③判断D1B1与平面B1EF不垂直;④直线D1B1与平面B1EF所成的角不一定是为60°.【解答】解:如图1所示三棱锥D1﹣B1EF的体积为V=•B1C1=××2×2×1=,为定值,①正确;EF∥D1C1,∠B1D1C1是异面直线D1B1与EF所成的角,为45°,②正确;D1B1与EF不垂直,由此知D1B1与平面B1EF不垂直,③错误;直线D1B1与平面B1EF所成的角不一定是为60°,④错误.综上,正确的命题序号是①②.故答案为:①②.【点评】本题考查了空间中的直线与平面之间的位置关系应用问题,是中档题.17.(4分)阿波罗尼斯是古希腊著名数学家,与欧几里得、阿基米德被称为亚历山大时期数学三巨匠,他对圆锥曲线有深刻而系统的研究,主要研究成果击中在他的代表作《圆锥曲线》一书,阿波罗尼斯圆是他的研究成果之一,指的是:已知动点M与两定点A、B的距离之比为λ(λ>0,λ≠1),那么点M的轨迹就是阿波罗尼斯圆.下面,我们来研究与此相关的一个问题.已知圆:x2+y2=1和点,点B(1,1),M为圆O上动点,则2|MA|+|MB|的最小值为.【分析】如图,取点K(﹣2,0),连接OM、MK.由△MOK∽△AOM,可得=2,推出MK=2MA,在△MBK中,MB+MK≥BK,推出2|MA|+|MB|=|MB|+|MK|的最小值为BK的长.【解答】解:如图,取点K(﹣2,0),连接OM、MK.∵OM=1,OA=,OK=2,∴=2,∵∠MOK=∠AOM,∴△MOK∽△AOM,∴=2,∴MK=2MA,∴|MB|+2|MA|=|MB|+|MK|,在△MBK中,|MB|+|MK|≥|BK|,∴|MB|+2|MA|=|MB|+|MK|的最小值为|BK|的长,∵B(1,1),K(﹣2,0),∴|BK|=故答案为:.【点评】本题考查直线与圆的方程的应用,坐标与图形的性质、相似三角形的判定和性质、三角形的三边关系、两点之间的距离公式等知识,解题的关键是灵活运用所学知识解决问题,学会用转化的思想思考问题,属于中档题.三、解答题(共5小题,满分74分)18.(14分)设命题p:方程表示双曲线;命题q:斜率为k的直线l过定点P(﹣2,1),且与抛物线y2=4x有两个不同的公共点.若p,q都是真命题,求k的取值范围.【分析】由双曲线的性质得:方程表示双曲线,即(2+k)(3k+1)>0,即k,由直线与抛物线的位置关系得:关于y的方程:ky2﹣4y+8k+4=0,有两不等实数解,再由判别式求解,然后利用复合命题的真假列不等式组即可得解.【解答】解:当p为真时,即方程表示双曲线,即(2+k)(3k+1)>0,即k,当q为真时,即斜率为k的直线l过定点P(﹣2,1),且与抛物线y2=4x有两个不同的公共点.由点斜式可设直线方程为:y﹣1=k(x+2),即y=kx+2k+1,联立方程组即,消x整理得:ky2﹣4y+8k+4=0,又直线与抛物线交于不同的两点,即关于y的方程有两不等实数解,即,解得:﹣1,又p,q都是真命题,则,解得:﹣,故答案为:(﹣∪(0,).【点评】本题考查了双曲线的性质、直线与抛物线的位置关系及复合命题的真假,属简单题.19.(15分)如图,在正三棱柱ABC﹣A1B1C1中,AB=AA1=2,点P,Q分别为A1B1,BC的中点.(1)求异面直线BP与AC1所成角的余弦值;(2)求直线CC1与平面AQC1所成角的正弦值.【分析】设AC,A1C1的中点分别为O,O1,以{}为基底,建立空间直角坐标系O﹣xyz,(1)由|cos|=可得异面直线BP与AC1所成角的余弦值;(2)求得平面AQC1的一个法向量为,设直线CC1与平面AQC1所成角的正弦值为θ,可得sinθ=|cos|=,即可得直线CC1与平面AQC1所成角的正弦值.【解答】解:如图,在正三棱柱ABC﹣A1B1C1中,设AC,A1C1的中点分别为O,O1,则,OB⊥OC,OO1⊥OC,OO1⊥OB,故以{}为基底,建立空间直角坐标系O﹣xyz,∵AB=AA1=2,A(0,﹣1,0),B(,0,0),C(0,1,0),A1(0,﹣1,2),B1(,0,2),C1(0,1,2).(1)点P为A1B1的中点.∴,∴,.|cos|===.∴异面直线BP与AC1所成角的余弦值为:;(2)∵Q为BC的中点.∴Q()∴,,设平面AQC1的一个法向量为=(x,y,z),由,可取=(,﹣1,1),设直线CC1与平面AQC1所成角的正弦值为θ,sinθ=|cos|==,∴直线CC1与平面AQC1所成角的正弦值为.【点评】本题考查了向量法求空间角,属于中档题.20.(15分)已知抛物线C;y2=2px过点A(1,1).(1)求抛物线C的方程;(2)过点P(3,﹣1)的直线与抛物线C交于M,N两个不同的点(均与点A不重合),设直线AM,AN的斜率分别为k1,k2,求证:k1•k2为定值.【分析】(1)利用待定系数法,可求抛物线的标准方程;(2)设过点P(3,﹣1)的直线l的方程为x﹣3=m(y+1),即x=my+m+3,代入y2=x利用韦达定理,结合斜率公式,化简,即可求k1•k2的值.【解答】解:(1)由题意抛物线y2=2px过点A(1,1),所以p=,所以得抛物线的方程为y2=x;(2)证明:设过点P(3,﹣1)的直线l的方程为x﹣3=m(y+1),即x=my+m+3,代入y2=x得y2﹣my﹣m﹣3=0,设M(x1,y1),N(x2,y2),则y1+y2=m,y1y2=﹣m﹣3,所以k1•k2===﹣【点评】本题考查抛物线方程,考查直线与抛物线的位置关系,考查韦达定理的运用,考查学生的计算能力,属于中档题.21.(15分)如图,在边长为2的正方形ABCD中,E为线段AB的中点,将△ADE沿直线DE翻折成△A′DE,使得平面A′DE⊥平面BCDE,F为线段A′C的中点.(Ⅰ)求证:BF∥平面A′DE;(Ⅱ)求直线A′B与平面A′DE所成角的正切值.【分析】(Ⅰ)取A'D的中点M,连接FM,EM,由已知得四边形BFME为平行四边形,由此能证明BF∥平面A'DE.(Ⅱ)在平面BCDE内作BN⊥DE,交DE的延长线于点N,则BN⊥平面A'DE,连接A'N,∠BA'N为A'B与平面A'DE所成的角,由此能求出直线A'B与平面A'DE所成角的正切值.【解答】(Ⅰ)证明:取A'D的中点M,连接FM,EM.∵F为A'C中点,∴FM∥CD且…(2分)∴BE∥FM且BE=FM,∴四边形BFME为平行四边形.…(4分)∴BF∥EM,又EM⊆平面A'DE,BF⊄平面A'DE,∴BF∥平面A'DE…(6分)(Ⅱ)解:在平面BCDE内作BN⊥DE,交DE的延长线于点N,∵平面A'DE⊥平面BCDE,平面A'DE∩平面BCDE=DE,∴BN⊥平面A'DE,连接A'N,则∠BA'N为A'B与平面A'DE所成的角,…(8分)∵△BNE∽△DAEBE=1,,∴,…(10分)在△A'DE中作A'P⊥DE垂足为P,∵A'E=1,A'D=2,∴,∵,∴在直角△A'PN中,,又,∴…(14分)∴在直角△A'BN中,,∴直线A'B与平面A'DE所成角的正切值为.…(15分)【点评】本题考查线面平行的证明,考查线面角的正切值的求法,考查方程思想、等价转化思想等数学思想方法和学生的空间想象能力、逻辑推理能力和运算求解能力,是中档题.22.(15分)已知椭圆C:+=1(a>b>0)的离心率为,直线l:x+2y=4与椭圆有且只有一个交点T.(I)求椭圆C的方程和点T的坐标;(Ⅱ)O为坐标原点,与OT平行的直线l′与椭圆C交于不同的两点A,B,直线l′与直线l交于点P,试判断是否为定值,若是请求出定值,若不是请说明理由.【分析】(I)根据椭圆的离心率公式,b2=a2,将直线方程代入椭圆方程由△=0,即可求得a和b的值,求得椭圆方程;(Ⅱ)设直线l′的方程,联立求得P点坐标,将直线方程,代入椭圆方程,利用韦达定理及两点之间的距离公式,求得|PA|•|PB|,即可求得答案.【解答】解:(I)由e===,b2=a2,联立,消去x,整理得:,①由△=0,解得:a2=4,b2=3,∴椭圆的标准方程,由①可知y T=,则T(1,);(Ⅱ)设直线l′的方程为y=x+t,由,解得P的坐标为(1﹣,+),所以|PT|2=t2,设A(x1,y1),B(x2,y2),联立,消去y整理得x2+tx+﹣1=0,则,△=t2﹣4(﹣1)>0,t2<12,y1=x1+t,y2=x2+t,|PA|==|﹣x1|,同理|PB|=|﹣x2|,|PA|•|PB|=|(﹣x1)(﹣x2)|=|﹣(x1+x2)+x1x2|,|﹣(﹣t)+|=t2,∴==,∴=为定值.【点评】本题考查椭圆的标准方程,直线与椭圆的位置关系,考查韦达定理,两点之间的距离公式,考查转化思想,属于中档题.。

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试英语---精校Word版含答案

浙江省“温州十校联合体”2018-2019学年高二上学期期末考试英语---精校Word版含答案

绝密★考试结束前2018学年第一学期“温州十校联合体”期末考试联考高二年级英语学科试题考生须知:1.本卷共9页,满分150分,考试时间120分钟;2.答题前,在答题卷指定区域填写班级、姓名、考场号、座位号及准考证号并填涂相应数字;3.所有答案必须写在答题纸上,写在试卷上无效;4.考试结束后,只需上交答题纸。

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第一节(共5小题;每小题1.5分,满分7.5分)第二部分阅读理解(共两节,满分35分)第一节(共10小题;每小题2.5分,满分25分)阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项,并在答题纸上将该项涂黑。

AAfter the operation, Peter suffered severe pain, but insisted that he didn’t need any treatment. One evening, he found Susan, his wife, crying in the kitchen of their apartment in a rare outburst of frustration. “If you won’t help yourself, no one else can,” she said.Peter started a list “How to Help Myself”, and on it he wrote, “Keep communicating with the doctors, even if they are dark thoughts.” On October 20th, a few days before his 33 birthday, Peter wrote in a Facebook post, “It’s been hard to get along with having an incurable Grade 4 braincancer; it’s been hard not to get angry and sad about it; and it’s been hard to accept that modern medicine isn’t able to fix me.” But at the same time, he wrote, “Every day I wake up not-dead is a gift.”Peter and Susan had other lists, detailing the things that they hoped to accomplish in life, which included a trip to Wimbledon; climbing Mt. Snowdon in Wales; and a list of musical wishes—from learning the Bach sonatas (奏鸣曲) and partitas (变奏曲) to performing the first violin part in a concert.Peter started working on Bach’s six sonatas and partitas, the most difficult parts, which George Enescu, a world-famous violinist, once described as the Himalayas (喜马拉雅山) for violinists. Peter practiced every day, even if he could manage only fifteen minutes between medical treatments. As he mastered each piece, he posted his performances on Facebook. He finished on November 12th, then turned to the even more difficult Paganini caprices (随想曲), which he had often listened to in a recording by Itzhak Perlman. “It’s something I always wanted to play when I grew up, like wanting to be a great baseball player,” he said.21. Susan cried in the kitchen because_______________.A. she suffered great pain from the Grade 4 brain cancerB. Peter refused to get medical treatment after the operationC. nobody else wanted to help them out of the situationD. no money was left to pay fo r Peter’s medical treatment22. Which of the following can best describe Peter’s feeling when he wrote “Every day I wake up not-dead is a gift.”?A. Grateful.B. Sad.C. Frustrated.D. Determined.23.The couple’s list of thi ngs they hoped to accomplish in life included_______________.A. playing tennis in WimbledonB. cycling in Mt. Snowdon in WalesC. learning Mozart’s sonatas and partitasD. playing the first violin part in a concert24. In the last parag raph, Bach’s six sonatas and partitas is compared to the Himalayas for violinists to stress ____________.A. its popularity among peopleB. its value for learnersC. its difficulty when being learnedD. its importance in violinists’ eyesBThere was great excitement on the planet of Venus (金星) this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs.The satellite was directed into an area known as Manhattan (曼哈顿). Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information about the feasibility of a manned flying saucer (飞碟) landing on Earth. A press conference was held at the Venus Institute of Technology.“We have come to the conclusion, based on last week's satellite landing,” Prof essor Zog said, “that there is no life on Earth."“How do you know this?” the science reporter of the Venus Evening News asked."For one thing, Earth's surface in the area of Manhattan consists of solid concrete (混泥土) and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe this air and survive.”“Are there any other sources of danger that you have discovered in your studies?”“Take a look at this photo. You see this dark black cloud staying over the surface of Earth? We don't know what it is made of, but it could give us a lot of trouble and we shall have to makefurther tests before we send a Venus Being there. Over here you will notice what seems to be a river, but the satellite findings indicates it is polluted and the water is unfit to drink.”“Sir, what are all those tiny black spots on the photographs?”“We’re not certain. They seem to be metal objects that moves along certain roads. They give out gases, make noise and keep crashing into each other.”“Prof essor Zog, why are we spending billions and billions of Zilches to land a flying saucer on Earth when there is no life there?”“Because if we Venusians can learn to breathe in the Earth atmosphere, then we can live anywhere.”25. What does the underlined word “feasibility” in Paragraph 2 mean?A. possibilityB. abilityC. simplicityD. responsibility26. What problems on the earth was not mentioned by the author?A. Air pollution.B. Water pollution.C. Heavy traffic.D. Over population.27. Why did the author write the passage?A. To tell us a dream of Venusian scientists.B. To show the secret of life on other planets.C. To persuade people to try living on the earth.D. To remind people on the earth of some problems.CThere’s a new frontier (新领域) in 3D printing that’s beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn’t stopping there.Food productionWith a 3D printer, a cook can print complicated (复杂的) chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that—it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,” freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.NutritionFuture 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consume rs to print food to meet their own nutritional needs, like vitamins. So instead of eating a piece of yesterday’s bread from the supermarket, you’d eat something baked just for you on demand.”ChallengesDespite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste (糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.28. What benefit does 3D printing bring to food production?A. It helps cooks to create new dishes.B. It makes the dishes more delicious.C. It saves time and effort in cooking.D. It contributes to restaurant decorations.29. According to Paragraph 3, 3D-printed food____________.A. is more available to customers.B. can keep all the nutrition in raw materials.C. is more tasty than food in supermarkets.D. can meet individual nutritional needs.30. What could be the best title of the passage?A. 3D Food Printing: From Farm to TableB. 3D Food Printing: Delicious New TechnologyC. The Challenges for 3D Food ProductionD. A New Way to Improve 3D Food Printing第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

浙江温州十校联合体2018-2019学年高二语文上学期期末联考试题及答案

浙江温州十校联合体2018-2019学年高二语文上学期期末联考试题及答案

2018学年第一学期十校联合体高二期末联考语文试卷(满分为120分,考试时间120分钟)一、语言文字运用题(选择题每题2分,语用题8分,共22分)1.下列词语中加点的字读音完全正确的一项是()A、狭隘.(ài)框.(kuāng)架瞭.(liào)望氛.(fèn)围B、盘桓.(huán)栏楯.(shǔn)谂.(niǎn)知纤.(qiān)尘C、菲.(fēi)薄晌.(shǎng)午肖.(xiāo)像赝.(yàn)品D、踯.(zhí)躅瞥.(piē)见伛.(yǔ)偻砭.(biān)骨2.下列各组词语中没有错别字的一项是()A、安祥龌龊莫衷一是风弛电掣卷帙浩繁B、惦念沧穹气喘吁吁义正辞严原形毕露C、绿阴斑斓人才辈出掎角之势姗姗可爱D、震撼喋血暇不掩瑜步履维艰陨身不恤3.依次填入下列横线处的词语,恰当的一项是()①我的任务是过桥去对岸的桥头堡,查明敌人究竟推进到了什么地点。

②他的行为反复无常,令人难以 ,不知下步他将会做些什么。

③这一地区曾一度山洪 ,造成公路被毁、交通中断。

A、侦查琢磨暴发B、侦察琢磨爆发C、侦查捉摸爆发D、侦察捉摸暴发4.下列各句中加点的成语使用正确的一句是()A、博物馆里保存着大量有艺术价值的石刻作品,上面的各种花鸟虫兽、人物形象栩栩如生,美轮美奂....。

B、《我的叔叔于勒》叙述人的视角是仰视的,他对成人世界的复杂与不可..理喻..,无法做出解释和判断。

C、几年前,我们在沈园相识;今天我们又在异地萍水相逢....。

D、最近出版了一本文不加点....、几乎没有注释的旧体诗集子,这样的书,读起来确实累人。

5.下列各句中没有语病的一句是()A、海明威在19岁时被卷入了第一次世界大战,他自愿到意大利去做救护车司机,结果在前线经受了战火的洗礼,弹片击中了他,负了重伤。

B.家住关山的李师傅昨日走中环线到汉口办事,比以往走的路段足足节省了一倍的时间。

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试数学试题(解析版)

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试数学试题(解析版)

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试数学试题一、单选题1.直线的倾斜角是()A.B.C.D.【答案】C【解析】直线的斜率为直线的倾斜角为:,可得:故选2.抛物线的焦点坐标是()A.B.C.D.【答案】A【解析】试题分析:根据抛物线的焦点坐标是,所以此题的答案应是,故选A.【考点】抛物线的焦点坐标和标准方程.3.设是两条不同的直线,是一个平面,则下列命题正确的是()A.若,则B.若,则C.若,则D.若,则【答案】D【解析】试题分析:对于A,若,与可能平行,故A错;对于B, 若,与可以相交、异面直线、平行,故B错;对于C, 若,,l与可以相交、异面直线、平行,故C错;对于D,根据线面垂直的性质定理可得若,则,故D 正确.【考点】空间直线与平面的位置关系.【方法点晴】本题主要考查空间直线与平面的位置关系,属于中档题.空间直线、平面平行或垂直等位置关系命题的真假判断,常采用画图(尤其是画长方体)、现实实物判断法(如墙角、桌面等)、排除筛选法等;另外,若原命题不太容易判断真假,可以考虑它的逆否命题,判断它的逆否命题真假,原命题与逆否命题等价. 4.“直线y =x+b 与圆x2+y2=1相交”是“0<b <1”的( ) A .充分不必要条件 B .必要不充分条件 C .充要条件 D .既不充分也不必要条件 【答案】B【解析】由题意,直线y =x+b 与圆x 2+y 2=1相交,可得(0,b )在圆内,b 2<1,求出﹣1<b <1,即可得出结论. 【详解】由题意,直线y =x+b 恒过(0,b ),∵直线y =x+b 与圆x 2+y 2=1相交,∴(0,b )在圆内,∴b 2<1,∴﹣1<b <1; 又由0<b <1时,(0,b )在圆内,∴直线y =x+b 与圆x 2+y 2=1相交. 故选:B . 【点睛】本题主要考查了直线与圆的位置关系,以及充要条件的判断问题,其中解答中熟记直线与圆的位置关系的求解方法,以及充要条件的判定方法是解答的关键,着重考查了推理与计算能力,属于基础题.5.圆221:2880C x y x y +++-=与圆222:4410C x y x y +---=的公切线条数为( )A.1 B .2 C.3 D.4 【答案】B【解析】试题分析:由题意得,圆1C 的圆心1(1,4)C --,半径为5R =;圆2C 的圆心2(2,2)C ,半径为3r =,则12C C =,且2,8R r R r -=+=,即12R r C C R r -<<+,所以两圆相交,所以共有2条公切线,故选B .【考点】圆与圆的位置关系.6.双曲线的左、右焦点分别为,,在左支上过点的弦AB的长为5,那么的周长是A.12 B.16 C.21 D.26【答案】D【解析】依题意,利用双曲线的定义可求得,,从而可求得的周长.【详解】解:依题意,,,,又,..即的周长是26.故选:D.【点睛】本题考查双曲线的简单性质,着重考查双曲线定义的灵活应用,属于中档题.7.已知正四棱柱中,,E为中点,则异面直线BE与所成角的余弦值为( )A.B.C.D.【答案】C【解析】平移成三角形用余弦定理解,或建立坐标系解,注意线线角不大于,故选C. 8.如图,在正方体中,是侧面内一动点,若到直线与直线的距离相等,则动点的轨迹是A.直线B.圆C.双曲线D.抛物线【答案】D【解析】由题意知,直线C1D1⊥平面BB1C1C,则C1D1⊥PC1,即|PC1|就是点P到直线C1D1的距离,那么点P到直线BC的距离等于它到点C的距离,所以点P的轨迹是抛物线.故选D.9.已知点为抛物线上的两点,为坐标原点,且,则的面积的最小值为()A.16 B.8 C.4 D.2【答案】A【解析】方法一:第一步,把A,B点设出来;第二步,根据向量垂直的等式关系推导出参数间的关系;第三步,根据题意列出面积方程;第四步,利用均值不等式进行求最小值.方法二:由对称性,当的面积取得最小值时,两点关于轴对称,根据对称关系,直线的倾斜角为,直线的方程为,将其代入抛物线方程,【详解】解析:设,则,,则解得,根据三角形的面积公式,,当且仅当时,取最小值.则的面积的最小值为16.解法2:由对称性,当的面积取得最小值时,两点关于轴对称,又因为,所以直线的倾斜角为,直线的方程为,将其代入抛物线方程,解得,所以,此时.答案选A 【点睛】本题考查直线与抛物线形成的三角形面积,对动点采用设而不求的方法,难点在于根据已有向量关系形成等量代换,进而均值不等式求解面积最小值,难度较大。

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试英语试题 解析版+听力

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试英语试题 解析版+听力

绝密★启用前浙江省“温州十校联合体”2018-2019学年高二上学期期末考试英语试题一、阅读理解After the operation, Peter suffered severe pain, but insisted that he didn’t need any treatment. One evening, he found Susan, his wife, crying in the kitchen of their apartment in a rare outbu rst of frustration. “If you won’t help yourself, no one else can,” she said.Peter started a list “How to Help Myself”, and on it he wrote, “Keep communicating with the doctors, even if they are dark thoughts.” On October 20th, a few days before his 33 bir thday, Peter wrote in a Facebook post, “It’s been hard to get along with having an incurable Grade 4 brain cancer; it’s been hard not to get angry and sad about it; and it’s been hard to accept that modern medicine isn’t able to fix me.” But at the same time, he wrote, “Every day I wake up not-dead is a gift.”Peter and Susan had other lists, detailing the things that they hoped to accomplish in life, which included a trip to Wimbledon; climbing Mt. Snowdon in Wales; and a list of musical wishes—from learning the Bach sonatas (奏鸣曲) and partitas (变奏曲) to performing the first violin part in a concert.Peter started working on Bach’s six sonatas and partitas, the most difficult parts, which George Enescu, a world-famous violinist, once described as the Himalayas (喜马拉雅山) for violinists. Peter practiced every day, even if he could manage only fifteen minutes between medical treatments. As he mastered each piece, he posted his performances on Facebook. He finished on November 12th, then turned to the even more difficult Paganini caprices (随想曲), which he had often listened to in a recording by Itzhak Perlman. “It’s something I always wanted to play when I grew up, like wanting to be a great baseball player,” he said.1.Susan cried in the kitchen because_______________.A.she suffered great pain from the Grade 4 brain cancerB.Peter refused to get medical treatment after the operationC.nobody else wanted to help them out of the situationD.no money was left to pay for Peter’s medical treatment2.Which of the following can best describe Peter’s feeling when he wrote “Every day I wake up not-dead is a gift.”?A.Grateful.B.Sad.C.Frustrated.D.Determined.3.The couple’s list of things they hoped to accomplish in life included_______________. A.playing tennis in WimbledonB.cycling in Mt. Snowdon in WalesC.learning Mozart’s sonatas and partitasD.playing the first violin part in a concert4.In the last paragraph, Bach’s six sonatas and partitas is compared to the Himalayas for violinists to stress ____________.A.its popularity among peopleB.its value for learnersC.its difficulty when being learnedD.its importance in violinists’ eyes【答案】1. B2. A3. D4. C【解析】【分析】本文为记叙文。

浙江省温州市十校联合体2018-2019学年高二上学期期末化学考试(解析版)

浙江省温州市十校联合体2018-2019学年高二上学期期末化学考试(解析版)

浙江省温州市十校联合体2018-2019学年高二上学期期末考试一、单选题(本大题共25小题,共50.0分)1.下列物质中,其主要成分不属于烃的是( )A. 汽油B. 甘油C. 煤油D. 柴油【答案】B【详解】A. 汽油的主要成分是烃;B. 甘油为丙三醇,属于多元醇类,不是烃;C. 煤油的主要成分是烃;D. 柴油的主要成分是烃。

答案选B 。

2.仪器名称为“容量瓶”的是( )A. B. C. D.【答案】D【详解】A.此仪器为圆底烧瓶,故A 错误;B.此仪器为烧杯,故B 错误;C.此仪器为分液漏斗,故C 错误;D.此仪器为容量瓶,故D 正确。

故答案为:D 。

3.下列属于弱电解质的是( )A. 34CH COONHB. 3CH COOHC. 32CH CH OHD. 4CH 【答案】B【分析】水溶液中或熔融状态导电的化合物为电解质;水溶液中部分电离的电解质为弱电解质;水溶液中或熔融状态下完全电离的电解质为强电解质;水溶液中和熔融状态下都不导电的化合物为非电解质;据此回答。

【详解】A.醋酸铵是溶于水的盐完全电离出离子,溶液导电属于强电解质,故A 错误;B.醋酸在水溶液中部分电离,溶液导电,醋酸属于弱电解质,故B 正确;C.乙醇不能电离,属于非电解质,故C 错误;D.甲烷不能电离,属于非电解质,故D 错误;故答案为:B 。

4.下列有机化合物中,其核磁共振氢谱图中不可能只出现一个峰的是( )A. C 2H 6B. C 3H 8C. C 2H 6OD. C 6H 12 【答案】B【详解】A. C 2H 6中只有一种氢原子,所以核磁共振氢谱只出现一个峰,故不符合题意; B. C 3H 8中有两种氢原子,故出现两个峰,故符合题意; C. C 2H 6O 可能是乙醇或甲醚,乙醇中含有3种氢原子,甲醚中只有一种氢原子,故可能出现一个峰,故不符合题意; D. C 6H 12可能是环己烷或己烯,环己烷只有一种氢原子,故不符合题意。

浙江省温州市2018年十校联合体高二上期末数学试卷(含答案解析)

浙江省温州市2018年十校联合体高二上期末数学试卷(含答案解析)

2018-2019学年浙江省温州市十校联合体高二(上)期末数学试卷一、选择题:本大题共10小题,每小题4分,共40分、在每小题给出的四个选项中,只有一项是符合题目要求的、1、(4分)准线方程是y=﹣2的抛物线标准方程是()A、x2=8yB、x2=﹣8yC、y2=﹣8xD、y2=8x2、(4分)已知直线l1:x﹣y+1=0和l2:x﹣y+3=0,则l1与l2之间距离是()A、B、 C、D、23、(4分)设三棱柱ABC﹣A1B1C1体积为V,E,F,G分别是AA1,AB,AC的中点,则三棱锥E﹣AFG体积是()A、 B、C、D、4、(4分)若直线x+y+m=0与圆x2+y2=m相切,则m的值是()A、0或2B、2C、D、或25、(4分)在四面体ABCD中()命题①:AD⊥BC且AC⊥BD则AB⊥CD命题②:AC=AD且BC=BD则AB⊥CD、A、命题①②都正确B、命题①②都不正确C、命题①正确,命题②不正确D、命题①不正确,命题②正确6、(4分)设m、n是两条不同的直线,α、β是两个不同的平面、考查下列命题,其中正确的命题是()A、m⊥α,n⊂β,m⊥n⇒α⊥βB、α∥β,m⊥α,n∥β⇒m⊥nC、α⊥β,m⊥α,n∥β⇒m⊥nD、α⊥β,α∩β=m,n⊥m⇒n⊥β7、(4分)正方体ABCD﹣A1B1C1D1中,二面角A﹣BD1﹣B1的大小是()A、 B、 C、D、8、(4分)过点(0,﹣2)的直线交抛物线y2=16x于A(x1,y1),B(x2,y2)两点,且y12﹣y22=1,则△OAB(O为坐标原点)的面积为()A、B、C、D、9、(4分)已知在△ABC中,∠ACB=,AB=2BC,现将△ABC绕BC所在直线旋转到△PBC,设二面角P﹣BC﹣A大小为θ,PB与平面ABC所成角为α,PC与平面PAB所成角为β,若0<θ<π,则()A、且B、且C、且D、且10、(4分)如图,F1,F2是椭圆C1与双曲线C2的公共焦点,点A是C1,C2的公共点、设C1,C2的离心率分别是e1,e2,∠F1AF2=2θ,则()A、B、C、D、二、填空题:本大题共7小题,多空题每题6分,单空题每题4分,共36分、11、(6分)双曲线C:x2﹣4y2=1的渐近线方程是,双曲线C 的离心率是、12、(6分)某空间几何体的三视图如图所示(单位:cm),则该几何体的体积V=cm3,表面积S=cm2、13、(4分)已知抛物线y2=4x的焦点为F,准线与x轴的交点为M,N为抛物线上的一点,则满足=、14、(6分)已知直线l1:y=mx+1和l2:x=﹣my+1相交于点P,O为坐标原点,则P点横坐标是(用m表示),的最大值是、15、(6分)四面体ABCD中,已知AB=AC=BC=BD=CD=1,则该四面体体积的最大值是,表面积的最大值是、16、(4分)过双曲线G:(a>0,b>0)的右顶点A作斜率为1的直线m,分别与两渐近线交于B,C两点,若|AB|=2|AC|,则双曲线G的离心率为、17、(4分)在棱长为1的正方体ABCD﹣A1B1C1D1中,点P是正方体棱上的一点(不包括棱的端点),对确定的常数m,若满足|PB|+|PD1|=m 的点P的个数为n,则n的最大值是、三、解答题:本大题共5小题,共74分、解答应写出文字说明、证明过程或演算步骤、18、(14分)已知抛物线C:y2=4x,直线l:y=﹣x+b与抛物线交于A,B 两点、(Ⅰ)若|AB|=8,求b的值;(Ⅱ)若以AB为直径的圆与x轴相切,求该圆的方程、19、(15分)在四棱锥E﹣ABCD中,底面ABCD是正方形,AC与BD交于点O,EC⊥底面ABCD,F为BE的中点、(Ⅰ)求证:DE∥平面ACF;(Ⅱ)求证:BD⊥AE;(Ⅲ)若AB=CE,在线段EO上是否存在点G,使CG⊥平面BDE?若存在,求出的值,若不存在,请说明理由、20、(15分)如图,四棱锥P﹣ABCD,PA⊥底面ABCD,AB∥CD,AB⊥AD,AB=AD=PA=2,CD=4,E,F分别是PC,PD的中点、(Ⅰ)证明:EF∥平面PAB;(Ⅱ)求直线AC与平面ABEF所成角的正弦值、21、(15分)已知点C(x0,y0)是椭圆+y2=1上的动点,以C为圆心的圆过点F(1,0)、(Ⅰ)若圆C与y轴相切,求实数x0的值;(Ⅱ)若圆C与y轴交于A,B两点,求|FA|•|FB|的取值范围、22、(15分)已知椭圆C的方程是,直线l:y=kx+m与椭圆C 有且仅有一个公共点,若F1M⊥l,F2N⊥l,M,N分别为垂足、(Ⅰ)证明:;(Ⅱ)求四边形F1MNF2面积S的最大值、2018-2019学年浙江省温州市十校联合体高二(上)期末数学试卷参考答案与试题解析一、选择题:本大题共10小题,每小题4分,共40分、在每小题给出的四个选项中,只有一项是符合题目要求的、1、(4分)准线方程是y=﹣2的抛物线标准方程是()A、x2=8yB、x2=﹣8yC、y2=﹣8xD、y2=8x【解答】解:由题意可知抛物线的焦点在y轴的正半轴,设抛物线标准方程为:x2=2py(p>0),∵抛物线的准线方程为y=﹣2,∴=2,∴p=4,∴抛物线的标准方程为:x2=8y、故选A、2、(4分)已知直线l1:x﹣y+1=0和l2:x﹣y+3=0,则l1与l2之间距离是()A、B、 C、D、2【解答】解:∵已知平行直线l1:x﹣y+1=0与l2:x﹣y+3=0,∴l 1与l2间的距离d==,故选C、3、(4分)设三棱柱ABC﹣A1B1C1体积为V,E,F,G分别是AA1,AB,AC的中点,则三棱锥E﹣AFG体积是()A、 B、C、D、【解答】解:∵三棱柱ABC﹣A1B1C1体积为V,∴V=S△ABC•AA1,∵E,F,G分别是AA1,AB,AC的中点,∴S△AFG=,,∴三棱锥E﹣AFG体积:V E﹣AFG===S△ABC•AA1=、故选:D、4、(4分)若直线x+y+m=0与圆x2+y2=m相切,则m的值是()A、0或2B、2C、D、或2【解答】解:∵圆x2+y2=m的圆心为原点,半径r=∴若直线x+y+m=0与圆x2+y2=m相切,得圆心到直线的距离d==, 解之得m=2(舍去0)故选B、5、(4分)在四面体ABCD中()命题①:AD⊥BC且AC⊥BD则AB⊥CD命题②:AC=AD且BC=BD则AB⊥CD、A、命题①②都正确B、命题①②都不正确C、命题①正确,命题②不正确D、命题①不正确,命题②正确【解答】解:对于①作AE⊥面BCD于E,连接DE,可得AE⊥BC,同理可得AE⊥BD,证得E是垂心,则可得出AE⊥CD,进而可证得CD⊥面AEB,即可证出AB⊥CD,故①正确;对于②,取CD的中点O,连接AO,BO,则CD⊥AO,CD⊥BO,∵AO∩BO=O,∴CD⊥面ABO,∵AB⊂面ABO,∴CD⊥AB,故②正确、故选A、6、(4分)设m、n是两条不同的直线,α、β是两个不同的平面、考查下列命题,其中正确的命题是()A、m⊥α,n⊂β,m⊥n⇒α⊥βB、α∥β,m⊥α,n∥β⇒m⊥nC、α⊥β,m⊥α,n∥β⇒m⊥nD、α⊥β,α∩β=m,n⊥m⇒n⊥β【解答】解:设m、n是两条不同的直线,α、β是两个不同的平面,则:m⊥α,n⊂β,m⊥n时,α、β可能平行,也可能相交,不一定垂直,故A不正确α∥β,m⊥α,n∥β时,m与n一定垂直,故B正确α⊥β,m⊥α,n∥β时,m与n可能平行、相交或异面,不一定垂直,故C 错误α⊥β,α∩β=m时,若n⊥m,n⊂α,则n⊥β,但题目中无条件n⊂α,故D也不一定成立,故选B、7、(4分)正方体ABCD﹣A1B1C1D1中,二面角A﹣BD1﹣B1的大小是()A、 B、 C、D、【解答】解:以D为原点,DA为x轴,DC为y轴,DD1为z轴,建立空间直角坐标系,设正方体ABCD﹣A1B1C1D1中棱长为1,则A(1,0,0),B(1,1,0),B1(1,1,1),D1(0,0,1),=(0,﹣1,0),=(﹣1,﹣1,1),=(0,0,1),设平面ABD1的法向量=(x,y,z),则,取y=1,得,设平面BB1D1的法向量=(a,b,c),则,取a=1,得=(1,﹣1,0),设二面角A﹣BD1﹣B1的大小为θ,则cosθ===﹣,∴θ=、∴二面角A﹣BD1﹣B1的大小为、故选:C、8、(4分)过点(0,﹣2)的直线交抛物线y2=16x于A(x1,y1),B(x2,y2)两点,且y12﹣y22=1,则△OAB(O为坐标原点)的面积为()A、B、C、D、【解答】解:设直线方程为x=my+2m,代入y2=16x可得y2﹣16my﹣32m=0,∴y1+y2=16m,y1y2=﹣32m,∴(y1﹣y2)2=256m2+128m,∵y12﹣y22=1,∴256m2(256m2+128m)=1,∴△OAB(O为坐标原点)的面积为|y1﹣y2|=、故选:D、9、(4分)已知在△ABC中,∠ACB=,AB=2BC,现将△ABC绕BC所在直线旋转到△PBC,设二面角P﹣BC﹣A大小为θ,PB与平面ABC所成角为α,PC与平面PAB所成角为β,若0<θ<π,则()A、且B、且C、且D、且【解答】解:在△ABC中,∠ACB=,AB=2BC,可设BC=a,可得AB=PB=2a,AC=CP=a,过C作CH⊥平面PAB,连接HB,则PC与平面PAB所成角为β=∠CPH,且CH<CB=a,sinβ=<=;由BC⊥AC,BC⊥CP,可得二面角P﹣BC﹣A大小为θ,即为∠ACP,设P到平面ABC的距离为d,由BC⊥平面PAC,且V B﹣ACP=V P﹣ABC,即有BC•S△ACP=d•S△ABC,即a••a•a•sinθ=d••a•a解得d=sinθ,则sinα==≤,即有α≤、另解:由BC⊥AC,BC⊥CP,可得二面角P﹣BC﹣A大小为θ,即为∠ACP以C为坐标原点,CA为x轴,CB为z轴,建立直角坐标系O﹣xyz, 可设BC=1,则AC=PC=,PB=AB=2,可得P(cosθ,sinθ,0),过P作PM⊥AC,可得PM⊥平面ABC,∠PBM=α,sinα==≤,可得α≤;过C作CN垂直于平面PAB,垂足为N,则∠CPN=β,sinβ==<=、故选:B、10、(4分)如图,F1,F2是椭圆C1与双曲线C2的公共焦点,点A是C1,C2的公共点、设C1,C2的离心率分别是e1,e2,∠F1AF2=2θ,则()A、B、C、D、【解答】解:根据椭圆的几何性质可得,=b 12tanθ,∵e1=,∴a1=,∴b12=a12﹣c2=﹣c2,∴=c2()tanθ根据双曲线的几何性质可得,=,∵a2=,∴b22=c2﹣a22=c2﹣=c2()∴=c2()•,∴c2()tanθ=c2()•,∴()sin2θ=()•cos2θ,∴,故选:B二、填空题:本大题共7小题,多空题每题6分,单空题每题4分,共36分、11、(6分)双曲线C:x2﹣4y2=1的渐近线方程是y=±x,双曲线C的离心率是、【解答】解:双曲线C:x2﹣4y2=1,即为﹣=1,可得a=1,b=,c==,可得渐近线方程为y=±x;离心率e==、故答案为:y=±x;、12、(6分)某空间几何体的三视图如图所示(单位:cm),则该几何体的体积V=cm3,表面积S=cm2、【解答】解:由题意,该几何体是以俯视图为底面,有一条侧棱垂直于底面的三棱锥,所以V==cm3,S=+++ =、故答案为:;、13、(4分)已知抛物线y2=4x的焦点为F,准线与x轴的交点为M,N为抛物线上的一点,则满足=、【解答】解:设N到准线的距离等于d,由抛物线的定义可得d=|NF|,由题意得cos∠NMF===∴∠NMF=、故答案为:、14、(6分)已知直线l1:y=mx+1和l2:x=﹣my+1相交于点P,O为坐标原点,则P点横坐标是(用m表示),的最大值是、【解答】解:直线l1:y=mx+1和l2:x=﹣my+1相交于点P,∴,∴x=﹣m(mx+1)+1,解得x=,y=m×+1=,∴P点横坐标是;∴=(﹣,﹣),∴=+=≤2,且m=0时“=”成立;∴的最大值是、故答案为:,、15、(6分)四面体ABCD中,已知AB=AC=BC=BD=CD=1,则该四面体体积的最大值是,表面积的最大值是+1、【解答】解:∵四面体ABCD中,AB=AC=BC=BD=CD=1,∴当平面ABC⊥平面BDC时,该四体体积最大,此时,过D作DE⊥平面ABC,交BC于E,连结AE,则AE=DE==,∴该四面体体积的最大值:S max==、∵△ABC,△BCD都是边长为1的等边三角形,面积都是S==,∴要使表面积最大需△ABD,△ACD面积最大,∴当AC⊥CD,AB⊥BD时,表面积取最大值,此时=,四面体表面积最大值S max==1+、故答案为:,、16、(4分)过双曲线G:(a>0,b>0)的右顶点A作斜率为1的直线m,分别与两渐近线交于B,C两点,若|AB|=2|AC|,则双曲线G的离心率为或、【解答】解:由题得,双曲线的右顶点A(a,0)所以所作斜率为1的直线l:y=x﹣a,若l与双曲线M的两条渐近线分别相交于点B(x1,y1),C(x2,y2)、联立其中一条渐近线y=﹣x,则,解得x2=①;同理联立,解得x1=②;又因为|AB|=2|AC|,(i)当C是AB的中点时,则x2=⇒2x2=x1+a,把①②代入整理得:b=3a,∴e===;(ii)当A为BC的中点时,则根据三角形相似可以得到,∴x1+2x2=3a,把①②代入整理得:a=3b,∴e===、综上所述,双曲线G的离心率为或、故答案为:或、17、(4分)在棱长为1的正方体ABCD﹣A1B1C1D1中,点P是正方体棱上的一点(不包括棱的端点),对确定的常数m,若满足|PB|+|PD1|=m 的点P的个数为n,则n的最大值是12、【解答】解:∵正方体的棱长为1,∴BD 1=,∵点P是正方体棱上的一点(不包括棱的端点),满足|PB|+|PD1|=m,∴点P是以2c=为焦距,以2a=m为长半轴的椭圆,∵P在正方体的棱上,∴P应是椭圆与正方体与棱的交点,结合正方体的性质可知,满足条件的点应该在正方体的12条棱上各有一点满足条件、∴满足|PB|+|PD1|=m的点P的个数n的最大值是12,故答案为12、三、解答题:本大题共5小题,共74分、解答应写出文字说明、证明过程或演算步骤、18、(14分)已知抛物线C:y2=4x,直线l:y=﹣x+b与抛物线交于A,B 两点、(Ⅰ)若|AB|=8,求b的值;(Ⅱ)若以AB为直径的圆与x轴相切,求该圆的方程、【解答】解:(Ⅰ)设A(x1,y1),B(x2,y2),由抛物线C:y2=4x,直线l:y=﹣x+b得y2+4y﹣4b=0﹣﹣﹣﹣﹣(2分)﹣y2|===8﹣﹣﹣﹣﹣﹣﹣﹣﹣∴|AB|=|y﹣﹣﹣(5分)解得b=1﹣﹣﹣﹣﹣﹣﹣﹣﹣﹣(7分)(Ⅱ)以AB为直径的圆与x轴相切,设AB中点为M|AB|=|y1+y2|又y1+y2=﹣4﹣﹣﹣﹣﹣﹣﹣﹣﹣﹣(9分)∴4=解得b=﹣,则M(,﹣2)﹣﹣﹣﹣﹣﹣﹣﹣﹣(12分)∴圆方程为(x﹣)2+(y+2)2=4﹣﹣﹣﹣﹣﹣﹣﹣﹣(14分)19、(15分)在四棱锥E﹣ABCD中,底面ABCD是正方形,AC与BD交于点O,EC⊥底面ABCD,F为BE的中点、(Ⅰ)求证:DE∥平面ACF;(Ⅱ)求证:BD⊥AE;(Ⅲ)若AB=CE,在线段EO上是否存在点G,使CG⊥平面BDE?若存在,求出的值,若不存在,请说明理由、【解答】解:(I)连接OF、由ABCD是正方形可知,点O为BD中点、又F为BE的中点,所以OF∥DE、又OF⊂面ACF,DE⊄面ACF,所以DE∥平面ACF…、(4分)(II)证明:由EC⊥底面ABCD,BD⊂底面ABCD,∴EC⊥BD,由ABCD是正方形可知,AC⊥BD,又AC∩EC=C,AC、E⊂平面ACE,∴BD⊥平面ACE,又AE⊂平面ACE,∴BD⊥AE…(9分)(III):在线段EO上存在点G,使CG⊥平面BDE、理由如下:取EO中点G,连接CG,在四棱锥E﹣ABCD中,AB=CE,CO=AB=CE,∴CG⊥EO、由(Ⅱ)可知,BD⊥平面ACE,而BD⊂平面BDE,∴平面ACE⊥平面BDE,且平面ACE∩平面BDE=EO,∵CG⊥EO,CG⊂平面ACE,∴CG⊥平面BDE故在线段EO上存在点G,使CG⊥平面BDE、由G为EO中点,得、…(14分)20、(15分)如图,四棱锥P﹣ABCD,PA⊥底面ABCD,AB∥CD,AB⊥AD,AB=AD=PA=2,CD=4,E,F分别是PC,PD的中点、(Ⅰ)证明:EF∥平面PAB;(Ⅱ)求直线AC与平面ABEF所成角的正弦值、【解答】(Ⅰ)证明:因为E,F分别是PC,PD的中点,所以EF∥CD,又因为CD∥AB,所以EF∥AB,又因为EF⊄平面PAB,AB⊂平面PAB,所以EF∥平面PAB、(Ⅱ)解:取线段PA中点M,连结EM,则EM∥AC,故AC与面ABEF所成角的大小等于ME与面ABEF所成角的大小、作MH⊥AF,垂足为H,连结EH、因为PA⊥平面ABCD,所以PA⊥AB,又因为AB⊥AD,所以AB⊥平面PAD,又因为EF∥AB,所以EF⊥平面PAD、因为MH⊂平面PAD,所以EF⊥MH,所以MH⊥平面ABEF,所以∠MEH是ME与面ABEF所成的角、在直角△EHM中,EM=AC=,MH=,得sin∠MEH=、所以AC与平面ABEF所成的角的正弦值是、21、(15分)已知点C(x0,y0)是椭圆+y2=1上的动点,以C为圆心的圆过点F(1,0)、(Ⅰ)若圆C与y轴相切,求实数x0的值;(Ⅱ)若圆C与y轴交于A,B两点,求|FA|•|FB|的取值范围、【解答】解:(Ⅰ)当圆C与y轴相切时,|x0|=,(2分)又因为点C在椭圆上,所以,(3分)解得,(5分)因为﹣,所以、(6分)(Ⅱ)圆C的方程是(x﹣x 0)2+(y﹣y0)2=(x0﹣1)2+,令x=0,得y2﹣2y0y+2x0﹣1=0,设A(0,y1),B(0,y2),则y1+y2=2y0,y1y2=2x0﹣1,(8分)由,及得﹣2﹣2<x 0<﹣2+2,又由P点在椭圆上,﹣≤x 0≤,所以﹣≤,(10分)|FA|•|FB|=•=(12分)===,(14分)所以|FA|•|FB|的取值范围是(4,2+2]、(15分)22、(15分)已知椭圆C的方程是,直线l:y=kx+m与椭圆C 有且仅有一个公共点,若F1M⊥l,F2N⊥l,M,N分别为垂足、(Ⅰ)证明:;(Ⅱ)求四边形F1MNF2面积S的最大值、【解答】解:(Ⅰ)证明:将直线的方程y=kx+m代入椭圆C的方程3x2+4y2=12中,得(4k2+3)x2+8kmx+4m2﹣12=0、由直线与椭圆C仅有一个公共点知,△=64k2m2﹣4(4k2+3)(4m2﹣12)=0,化简得:m2=4k2+3、设d1=|F1M=,d2=|F2M|=,d1d2=•===3,|F 1M|+|F2M|=d1+d2≥=2、(Ⅱ)当k≠0时,设直线的倾斜角为θ,则|d1﹣d2|=|MN||tanθ|,∴|MN|=,S=|MN|•(d1+d2)====,∵m2=4k2+3,∴当k≠0时,|m|,∴>+=,∴S、当k=0时,四边形F 1MNF2是矩形,、所以四边形F 1MNF2面积S的最大值为2、。

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试数学试题Word版含解析

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试数学试题Word版含解析

2018-2019学年浙江省“温州十校联合体”高二上学期期末考试数学试题一、单选题1.直线的倾斜角是()A.B.C.D.【答案】C【解析】直线的斜率为直线的倾斜角为:,可得:故选2.抛物线的焦点坐标是()A.B.C.D.【答案】A【解析】试题分析:根据抛物线的焦点坐标是,所以此题的答案应是,故选A.【考点】抛物线的焦点坐标和标准方程.3.设是两条不同的直线,是一个平面,则下列命题正确的是()A.若,则B.若,则C.若,则D.若,则【答案】D【解析】试题分析:对于A,若,与可能平行,故A错;对于B, 若,与可以相交、异面直线、平行,故B错;对于C, 若,,l与可以相交、异面直线、平行,故C错;对于D,根据线面垂直的性质定理可得若,则,故D正确.【考点】空间直线与平面的位置关系.【方法点晴】本题主要考查空间直线与平面的位置关系,属于中档题.空间直线、平面平行或垂直等位置关系命题的真假判断,常采用画图(尤其是画长方体)、现实实物判断法(如墙角、桌面等)、排除筛选法等;另外,若原命题不太容易判断真假,可以考虑它的逆否命题,判断它的逆否命题真假,原命题与逆否命题等价. 4.“直线y =x+b 与圆x2+y2=1相交”是“0<b <1”的( ) A .充分不必要条件 B .必要不充分条件 C .充要条件 D .既不充分也不必要条件 【答案】B【解析】由题意,直线y =x+b 与圆x 2+y 2=1相交,可得(0,b )在圆内,b 2<1,求出﹣1<b <1,即可得出结论. 【详解】由题意,直线y =x+b 恒过(0,b ),∵直线y =x+b 与圆x 2+y 2=1相交,∴(0,b )在圆内,∴b 2<1,∴﹣1<b <1; 又由0<b <1时,(0,b )在圆内,∴直线y =x+b 与圆x 2+y 2=1相交. 故选:B . 【点睛】本题主要考查了直线与圆的位置关系,以及充要条件的判断问题,其中解答中熟记直线与圆的位置关系的求解方法,以及充要条件的判定方法是解答的关键,着重考查了推理与计算能力,属于基础题.5.圆221:2880C x y x y +++-=与圆222:4410C x y x y +---=的公切线条数为( )A.1 B .2 C.3 D.4 【答案】B【解析】试题分析:由题意得,圆1C 的圆心1(1,4)C --,半径为5R =;圆2C 的圆心2(2,2)C ,半径为3r =,则12C C =,且2,8R r R r -=+=,即12R r C C R r -<<+,所以两圆相交,所以共有2条公切线,故选B .【考点】圆与圆的位置关系.6.双曲线的左、右焦点分别为,,在左支上过点的弦AB 的长为5,那么的周长是A.12 B.16 C.21 D.26【答案】D【解析】依题意,利用双曲线的定义可求得,,从而可求得的周长.【详解】解:依题意,,,,又,..即的周长是26.故选:D.【点睛】本题考查双曲线的简单性质,着重考查双曲线定义的灵活应用,属于中档题.7.已知正四棱柱中,,E为中点,则异面直线BE与所成角的余弦值为( )A.B.C.D.【答案】C【解析】平移成三角形用余弦定理解,或建立坐标系解,注意线线角不大于,故选C. 8.如图,在正方体中,是侧面内一动点,若到直线与直线的距离相等,则动点的轨迹是A.直线B.圆C.双曲线D.抛物线【答案】D【解析】由题意知,直线C1D1⊥平面BB1C1C,则C1D1⊥PC1,即|PC1|就是点P到直线C1D1的距离,那么点P到直线BC的距离等于它到点C的距离,所以点P的轨迹是抛物线.故选D.9.已知点为抛物线上的两点,为坐标原点,且,则的面积的最小值为()A.16 B.8 C.4 D.2【答案】A【解析】方法一:第一步,把A,B点设出来;第二步,根据向量垂直的等式关系推导出参数间的关系;第三步,根据题意列出面积方程;第四步,利用均值不等式进行求最小值.方法二:由对称性,当的面积取得最小值时,两点关于轴对称,根据对称关系,直线的倾斜角为,直线的方程为,将其代入抛物线方程,【详解】解析:设,则,,则解得,根据三角形的面积公式,,当且仅当时,取最小值.则的面积的最小值为16.解法2:由对称性,当的面积取得最小值时,两点关于轴对称,又因为,所以直线的倾斜角为,直线的方程为,将其代入抛物线方程,解得,所以,此时.答案选A 【点睛】本题考查直线与抛物线形成的三角形面积,对动点采用设而不求的方法,难点在于根据已有向量关系形成等量代换,进而均值不等式求解面积最小值,难度较大。

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【校级联考】浙江省“温州十校联合体”2018-2019学年高二上学期期末考试(含听力)英语试题
适用年级:高二 试卷类型:期末 试题总数:18 浏览次数:323 上传日期:2019-01-25
1 . How does the woman feel about her new job?
A.Bored.
B.Worried.
crying in the kitchen of their apartment in a rare outburst of frustration. “If you won’t help yourself, no one else can,” she said.
Peter started a list “How to Help Myself”, and on it he wrote, “Keep communicating with the doctors, even if they are dark thoughts.” On
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3 . Who is the woman? A.A clerk.
B.A teacher.
更新:2019/01/25 难度:0.85 题型:短对话 组卷:50
C.A student.
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4 . What will the young woman probably do? A.Write a paper. B.Ask her mother for help. C.Help the man with his homework.
C.Ten days ago. C.Frustrated.
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C.5 years ago. C.Indifferent.
更新:2019/01/25 难度:0.4 题型:短文 组卷:55
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11 . After the operation, Peter suffered severe pain, but insisted that he didn’t need any treatment. One evening, he found Susan, his wife,

Peter started working on Bach’s six sonatas and partitas, the most difficult parts, which George Enescu, a world-famous violinist, once described
as the Himalayas (喜马拉雅山) for violinists. Peter practiced every day, even if he could manage only fifteen minutes between medical treatments.
wanting to be a great baseball player,” he said.
【小题1】Susan cried in the kitchen because_______________.
A.she suffered great pain from the Grade 4 brain cancer
【小题2】When did Quinn Constantine come aboard?
A.20 years ago.
B.15 years ago.
【小题3】What does Quinn do well in?
A.Growing the brand internationally.
B.Developing some successful products.
As he mastered each piece, he posted his performances on Facebook. He finished on November 12th, then turned to the even more difficult Paganini
caprices (随想曲), which he had often listened to in a recording by Itzhak Perlman. “It’s something I always wanted to play when I grew up, like
更新:2019/01/25 难度:0.65 题型:长对话 组卷:51
10 . 听下面一段独白,回答以下小题。
【小题1】Which situation will the speaker remain?
A.Vice-president.
B.CEO of the company.
C.Chairman of the board.
【小题2】Which of the following can best describe Peter’s feeling when he wrote “Every day I wake up not-dead is a gift.”?
A.Grateful.
B.Sad.
C.Frustrated.
D.Determined.
Snowdon in Wales; and a list of musical wishes—from learning the Bach sonatas (奏鸣曲) and partitas (变奏曲) to performing the first violin part in
a concert.
【小题3】The couple’s list of things they hoped to accomplish in life included_______________.
A.playing tennis in Wimbledon
B.cycling in Mt. Snowdon in Wales
October 20th, a few days before his 33 birthday, Peter wrote in a Facebook post, “It’s been hard to get along with having an incurable Grade 4 brain
cancer; it’s been hard not to get angry and sad about it; and it’s been hard to accept that modern medicine isn’t able to fix me.” But at the same time,
更新:2019/01/25 难度:0.85 题型:短对话 组卷:48
C.Excited.
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2 . How much did Tom return to the woman? A.$5.
B.$15.
更新:2019/01/25 难度:0.85 题型:短对话 组卷:52
C.$50.
B.The hotel has very strict rules.
C.The woman feels unhappy about the service.
更新:2019/01/25 难度:0.65 题型:长对话 组卷:53
8 . 听下面一段较长对话,回答以下小题。
【小题1】What information is needed by the woman?
B.An office worker.
【小题2】What time must the woman leave her room tomorrow?
A.By 12:00.
B.By 2:00 p.m.
【小题3】What can we learn from the conversation?
A.The hotel offers good service.
A.6 pounds.
B.12 pounds.
更新:2019/01/25 难度:0.65 题型:长对话 组卷:53
C.On the telephone. C.16 pounds.
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7 . 听下面一段较长对话,回答以下小题。
【小题1】Who is the man?
A.A customer.
更新:2019/01/25 难度:0.65 题型:短对话 组卷:54
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6 . 听下面一段较长对话,回答以下小题。
【小题1】How are the speakers talking?
A.Online.
B.In the office.
【小题2】How much will the man have to pay?
更新:2019/01/25 难度:0.65 题型:短对话 组卷:53
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5 . What does the man mean? A.He is very excited about the news. B.He doesn’t pay attention to sports. C.He wishes a different team had won.
C.learning Mozart’s sonatas and partitas
D.playing the first violin part in a concert
A.Excited.
B.Confused.
更新:2019/01/25 难度:0.65 题型:长对话 组卷:51
9 . 听下面一段较长对话,回答以下小题。 【小题1】What’s wrong with the woman’s computer? A.The keyboard was broken. B.The mouse didn’t work. C.The screen went black. 【小题2】Who might the man be? A.A repairman. B.The woman’s husband. C.The woman’s colleague. 【小题3】What will the man do at once? A.Fix the computer. B.Take the computer away. C.Save the files for the woman.
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